Research by DoINeedAPermit Research Team · Updated May 2026
The Short Answer
Most HVAC work in Converse requires a permit from the City of Converse Building Department. Replacements of existing equipment in the same location may qualify for expedited review, but new installations, ductwork changes, and refrigerant-line relocations all need permits filed before work starts.
Converse, a rapidly growing suburban city in Bexar County south of San Antonio, enforces the 2015 International Energy Conservation Code (IECC) and 2015 International Mechanical Code (IMC) as adopted by Texas. Unlike some neighboring jurisdictions (e.g., Selma or Schertz), Converse has moved to an online permit portal system in recent years, reducing in-person filing — but this also means no over-the-counter same-day approvals for HVAC work. The city's building department specifically flags HVAC as a 'mechanical' trade requiring both permit intake and a third-party inspection before equipment activation. Converse's Bexar County location means you're in mixed climate zone (2A/3A boundary), which affects refrigerant-line insulation thickness and ductwork sizing per IECC Table 403.2.6. For owner-occupied residential work, homeowners can pull permits themselves (no contractor license required), but commercial and rental properties must be permitted by a licensed mechanical contractor — a local distinction that catches many DIYers off-guard. Plan-review turnaround is typically 5–10 business days for standard replacements, longer for new systems or ductwork redesigns.

What happens if you skip the permit (and you needed one)

Converse HVAC permits — the key details

Converse Building Department enforces the 2015 IMC Section 301 (General), which requires a mechanical permit for any HVAC installation, repair (if it involves replacement of components), or modification. The defining rule: if you're touching refrigerant lines, ductwork, or the air handler itself, you need a permit. Replacement of a furnace or AC condenser in the exact same location with the same capacity sometimes qualifies for 'repair vs. replacement' exemptions under IMC 302.4 — but Converse's building department applies this narrowly and typically issues a permit anyway to confirm size/efficiency compliance with current code (IECC 2015). Do not assume a straightforward condenser swap is permit-free; contact the building department first. The city's online portal (accessible through the Converse city website) walks you through a questionnaire that sorts repair vs. new installation, and if it routes to 'permit required,' you'll submit photos, equipment spec sheets (AHRI certificate, serial number, tonnage, SEER/HSPF ratings), and ductwork drawings if applicable. Permits cost $50–$150 for simple condenser/furnace replacements (estimated on equipment cost, typically 1–2% of system price) and $200–$500 for new systems with ductwork design. Inspections are required at rough-in (ductwork installed) and final (system operational, refrigerant charged).

Converse's location in Bexar County at the 2A/3A climate boundary introduces a local quirk: the city enforces IECC 2015 ductwork insulation R-value requirements per Table 403.2.6, which mandate R-8 minimum in conditioned spaces and R-6 in attics. However, the city's inspector checklist also requires verification of ductwork sealing per IECC 403.2.5 (duct tightness test or visual inspection). Many HVAC contractors from San Antonio forget Converse's stricter enforcement of duct sealing in attics — a common deficiency that delays final inspection by 1–2 weeks. If you're replacing ductwork or adding new runs, budget for a blower-door or duct-leakage test ($300–$600) as Converse inspectors increasingly demand compliance photos. Additionally, Converse's humid subtropical climate and occasional flooding (Salado Creek proximity) means the building department scrutinizes condensate-line routing: condensate drains must discharge to an approved location (interior drain, landscape bed with slope away from foundation) and cannot tie directly to roof gutters. This detail is city-specific enforcement and catches unpermitted retrofit jobs.

Owner-builder homeowners in Converse can pull HVAC permits themselves for owner-occupied single-family residences (Texas Occupations Code 1703.002 exempts certain owner-builder work). However, you must own the property, live in it, and perform or directly supervise the work (not simply hire a contractor and sign off). Many Converse homeowners misinterpret this rule and hire a contractor 'under-the-table,' then pull the permit in their name — this is permit fraud and voids your insurance. Licensed mechanical contractors must pull permits for rental properties, investment properties, and commercial buildings. The city's online portal flags the property owner-occupancy status during intake; if there's any discrepancy (e.g., you own a rental, but you're claiming owner-builder), the permit gets rejected or flagged for further review. For expedited processing, Converse offers 'Same-Day Review' for straightforward equipment replacement if submitted before 11 AM, but this requires a complete application (photos, spec sheets, proof of ownership/occupancy). Most residential replacements get approved within 2–5 business days if submitted online.

Refrigerant-line routing and sizing is another city-specific detail. Converse inspectors verify that all new or replaced refrigerant lines comply with EPA and EPA-SNAP (Significant New Alternatives Policy) rules, which restrict certain refrigerants. For most new systems, contractors are using R-410A or R-32 refrigerants, but the city's permit application now asks which refrigerant type and confirms no ozone-depleting substances are used. Line insulation thickness is specified by IMC Section 1103: minimum 1/2-inch foam or equivalent for outdoor suction lines in Converse's climate. Additionally, if your existing system used R-22 (common in older systems pre-2010), replacement requires a 'full system replacement' permit and proper recovery/certification of the old refrigerant — no top-ups allowed. The city doesn't manage refrigerant directly, but inspectors will note if they see evidence of non-compliant handling, and EPA violations can result in $10,000+ fines independent of the city permit.

Timeline and next steps: Contact Converse Building Department at City Hall (Converse, TX 78109) or via their online portal to confirm the current phone number and hours — the city frequently updates its contact info. Submit your permit application 1–2 weeks before the desired start date if using the online portal (5–10 business days review turnaround is typical). Have ready: property address, equipment spec sheets (AHRI certificate from the HVAC manufacturer), color photos of the existing installation (if replacement), ductwork drawings or scope description (if new/modified ducts), and proof of ownership. After approval, you'll receive a permit number and can schedule the rough-in inspection with the city. Once work is complete and the system is charged and running, call for final inspection within 10 days — delays past this window may require permit renewal. Total permitting cost is typically $100–$250 for replacements and $300–$600 for new systems, payable at permit issuance.

Three Converse hvac scenarios

Scenario A
Replace AC condenser and furnace, same location, Converse single-family home (owner-occupied)
You're a homeowner on Benson Drive in Converse, and your 15-year-old air conditioner and furnace are failing. Both units are in the basement and garage, respectively; you want to replace them with modern equivalents (same tonnage 3.5 tons, same ductwork, no new lines or duct routing). This is the most common residential HVAC project in Converse. Because you own and occupy the home, you can pull the permit yourself without a contractor license. You'll file online via the Converse permit portal, upload photos of the existing units, provide the AHRI spec sheets from the new equipment (confirming they're 3.5-ton, 16 SEER minimum to comply with IECC 2015), and check the box 'replacement in same location.' Converse's online system routes this to expedited review (no ductwork redesign = lower review burden). Permit issues within 2–5 business days; cost is $80–$150 (city charges approximately 1.5% of estimated system value: $4,500–$6,000 for a furnace + AC combo). Your contractor installs over 3–5 days. You schedule the rough-in inspection (ductwork inspection post-installation) and final inspection (system running, refrigerant charged, airflow tested). Final inspection typically occurs same day or next day. Do not start operation without the final inspection sign-off — running an unpermitted system risks a $250–$500 stop-work citation. Total permitting turnaround is 2–3 weeks from application to green-light operation. Cost: $0 contractor licensing fee (homeowner-permitted), $100–$150 permit fee, no third-party duct-seal testing unless inspector flags ductwork.
Owner-builder eligible (owner-occupied) | No contractor license needed | Expedited review (same-location replacement) | Permit fee $80–$150 | Rough-in + final inspection required | Total project cost $5,000–$8,000 system + $100–$150 permit | Timeline 2–3 weeks
Scenario B
New ductwork design and AC installation, attic retrofit, Converse rental property
You own a rental duplex on East Main Street in Converse (Bexar County, climate zone 3A). The original 1980s ductwork is deteriorated and undersized; you're installing a new 4-ton AC system with new ductwork routed through the attic. Because this is a rental property (investment, not owner-occupied), you cannot pull the permit yourself — you must hire a licensed mechanical contractor (Texas Occupations Code). The contractor files the permit application with the Converse Building Department, including CAD ductwork drawings (sizing calculations per IECC, insulation R-values per IECC Table 403.2.6), equipment spec sheets (4-ton AC, 16 SEER minimum, R-410A), and condensate-line routing (which the contractor confirms drains to an interior location, not roof gutters — Converse inspector checklist item). Permit fee is $300–$500 (new ductwork and system = 2% of estimated $15,000–$20,000 project value). Plan-review turnaround is 7–10 business days for ductwork design review. The contractor installs and performs a ductwork air-tightness test (blower-door method or visual inspection per IECC 403.2.5) — Converse increasingly requires this for new ductwork. Test cost is $300–$600, bundled in the contractor's quote. Rough-in inspection (city inspector verifies ductwork insulation R-value, sealing, and condensate routing) is scheduled; typical turnaround is 2–3 days. If insulation or sealing fails, contractor remedies and re-inspects (1–2 week delay possible). Final inspection occurs after system is charged and running. Total permitting timeline 4–6 weeks. Cost: $300–$500 permit fee, $300–$600 ductwork testing, $15,000–$20,000 system installation. Risk: if you attempt this as 'owner-builder' on a rental without a contractor, the permit is rejected or audited for fraud.
Licensed mechanical contractor required (rental property) | New ductwork design review (7–10 business days) | Permit fee $300–$500 | Ductwork air-tightness test $300–$600 (Converse requirement) | R-6 minimum attic insulation (IECC enforcement) | Total project $15,000–$20,000 system + $600–$1,100 permits/testing | Timeline 4–6 weeks
Scenario C
Refrigerant-line relocation and mini-split ductless system, commercial office retrofit, Converse
You manage a 4,000-sq-ft commercial office building on Foster Road in Converse. The existing window AC units are aging and inefficient; you want to install a mini-split ductless heat-pump system (2.5 tons indoor head in reception, 2 tons in back office). Because refrigerant lines will be routed through new locations (exterior wall penetrations, concealed in conduit), this is not a simple replacement — it's a significant HVAC modification. A licensed mechanical contractor must pull the permit. The application includes ductless system spec sheets (AHRI certificate, efficiency ratings per IECC 2015, R-410A refrigerant), line routing drawings (showing insulation thickness: 1/2-inch minimum foam per IMC 1103, line sizing per EPA guidelines), wall-penetration details (fire-sealing per IMC 602, caulking specification), and condensate drainage routing (mini-split units produce condensate that must drain to an approved outlet — the contractor confirms interior drain line or exterior discharge with slope). Permit fee for commercial is typically 2–3% of system value: a $10,000–$12,000 ductless system generates a $200–$360 permit fee. Plan review is 7–14 business days (commercial projects are reviewed more rigorously than residential). Rough-in inspection occurs after refrigerant lines are installed and insulated, and wall penetrations are sealed; city inspector verifies line insulation, EPA refrigerant-handling compliance (contractor must show EPA Section 608 certification), and fire-sealing of wall penetrations. Final inspection includes system operation test and condensate-line verification. Total permitting timeline 5–7 weeks. Cost: $200–$360 permit fee, contractor labor for EPA-compliant installation and testing. Risk: if refrigerant lines are routed improperly or insulation is missing, the inspector will flag it as a deficiency, and work must stop until remedied — commercial projects face stricter enforcement than residential in Converse.
Licensed mechanical contractor required (commercial) | Ductless mini-split system, no traditional ductwork | Refrigerant-line relocation (new routing, insulation, sealing) | Permit fee $200–$360 (2–3% of system value) | EPA Section 608 certification required for contractor | Wall penetration fire-sealing per IMC 602 | Plan review 7–14 business days (commercial) | Total project $10,000–$12,000 system + $200–$360 permit | Timeline 5–7 weeks

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Why Converse's climate zone affects HVAC code enforcement

Converse straddles the Texas 2A and 3A climate zone boundary (Bexar County, near San Antonio, at ~900 ft elevation). This position affects IECC insulation and efficiency requirements. Zone 3A (Converse's primary zone) mandates R-6 insulation for ductwork in attics, R-8 in conditioned spaces, per IECC Table 403.2.6. Zone 2A (coastal, more humid) would allow R-5, but Converse's inspectors treat Converse as 3A and enforce R-6 strictly. This means contractors from Austin or Houston sometimes underbid HVAC jobs assuming lower R-value, then face inspection rejections. Additionally, the 2015 IECC adopted by Converse requires ductwork sealing verification — either blower-door duct-leakage testing (max 15% of system airflow at 25 Pa test pressure) or visual inspection with photographic evidence. Converse Building Department increasingly demands the blower-door test for new ductwork installations (cost $300–$600), especially on rental or commercial properties, because the city's energy-code compliance rate has been criticized in municipal audits. Homeowners should budget for this test if pulling a new-ductwork permit.

Converse's humid subtropical climate (summer avg 95°F, winter avg 50°F) also affects refrigerant-line sizing and condensate management. Summer humidity is high; air conditioning systems produce substantial condensate (1–3 gallons per ton per day). The city's IMC enforcement includes strict condensate-line routing: drain lines must slope toward discharge point (min 1/8-inch per foot slope) and cannot tie into roof gutters or downspouts (common code violation in Texas). Converse inspectors check this during rough-in inspection by visually tracing the condensate line or requesting photos. If the line is routed incorrectly (e.g., discharges into a gutter where it can freeze or overflow in winter), the inspector will flag it as a deficiency and delay final approval. This detail is not mentioned in state code but is enforced locally due to Converse's experience with water-damage claims tied to improper condensate discharge.

Frost depth in Bexar County is 6–12 inches, which affects underground refrigerant-line burial depth if relevant (rare in residential HVAC, but commercial ground-source heat pumps must comply). Most residential and commercial HVAC in Converse uses above-ground line routing, so frost depth is a non-issue for the vast majority of projects. However, if a project involves condensate-line burial (unusual but possible in large commercial systems), the contractor must comply with frost-depth requirements (min 12 inches below frost line). Converse Building Department rarely encounters this scenario, so inspectors may defer to the state mechanical code or require engineer stamping of geotechnical depth justification.

Converse's online permit portal and expedited vs. standard review

Converse Building Department operates an online permit portal (accessible via the city website) for residential and commercial HVAC permits. The portal uses a questionnaire-based intake system: you answer questions about property type (owner-occupied residential, rental, commercial), HVAC scope (replacement in same location vs. new installation vs. ductwork modification), equipment type (furnace, AC, heat pump, mini-split), and refrigerant type. The system automatically routes your application to 'Expedited Review' if you answer: owner-occupied, replacement in same location, same capacity, no ductwork changes. Expedited permits (same-day or next-day approval) incur no additional fee but have stricter requirements: complete spec sheets, clear photos, proof of ownership, and confirmation no ductwork or refrigerant-line routing changes are planned. If the system detects any deviation (rental property, new ductwork, relocation), it routes to 'Standard Plan Review,' which takes 5–10 business days for residential and 7–14 days for commercial. Understanding this routing is critical: many homeowners submit incomplete expedited applications, expecting same-day turnaround, then are frustrated when the portal rejects and routes to standard review, adding 5–10 days to their timeline.

Converse's portal also requires digital upload of AHRI (Air-Conditioning, Heating, and Refrigeration Institute) certification sheets for new equipment. AHRI certificates include equipment ratings (tonnage, SEER for AC, AFUE for furnace, HSPF for heat pumps), refrigerant type, and manufacturer warranty info. The city's permit system cross-checks AHRI data against IECC minimum efficiency standards (IECC Table 503.2.3: minimum 16 SEER for AC in zone 3A, minimum 8.5 HSPF for heat pumps). If your spec sheet shows 14 SEER (below code), the permit is rejected with a notice that equipment must be upgraded. This is an automated check, not a manual reviewer decision, which accelerates the verification but also means zero flexibility — you cannot negotiate a one-time exception or grandfather older equipment. This is another Converse-specific detail: the portal's automated IECC cross-check is stricter than some neighboring jurisdictions (Selma, for example, allows manual variance requests), so contractors and homeowners must ensure equipment meets current minimums before submitting.

Payment and permit activation: Converse Building Department accepts online payment via credit card through the portal. Once payment is confirmed, the permit number is issued immediately (even if plan review is pending), and you can order the inspection via the same portal. However, do not start work until the permit status shows 'Approved' — commencing work on a 'Submitted' or 'Under Review' permit can result in a stop-work order. The portal updates status via email notifications, so check your email frequently during the review period. For homeowners unfamiliar with online systems, this is a common source of confusion; call the building department directly if you're unsure whether your permit is ready to activate. Typical wait time between permit issuance and work start is 1–2 days if you've already prepared; if you're still gathering spec sheets or photos, plan 3–5 days.

City of Converse Building Department
Converse City Hall, Converse, TX 78109
Phone: (210) 659-9600 (main line; ask for Building Department/Permits) | City of Converse Online Permit Portal (accessible via www.conversetx.gov)
Monday–Friday, 8:00 AM–5:00 PM (verify locally as hours may vary)

Common questions

Do I need a permit to replace my AC condenser if I hire a contractor?

Yes. In Converse, any HVAC replacement or installation requires a permit, regardless of whether you hire a licensed contractor or do it yourself (if owner-occupied). Even a straightforward condenser swap in the same location must be permitted per IMC Section 301. The permit costs $80–$150 and takes 2–5 business days on the expedited track. Your contractor can pull the permit on your behalf (most include permit fees in their quote), or you can pull it yourself if the home is owner-occupied.

What happens if my HVAC contractor doesn't pull a permit?

If Converse Building Department discovers unpermitted HVAC work (via a neighbor complaint, code-enforcement audit, or future inspection), you face a stop-work order, a $250–$500 administrative fine, and a lien on your property until the work is permitted retroactively. Additionally, your homeowner's insurance may deny claims if the insurer discovers undisclosed HVAC modifications, leaving you liable for water damage, refrigerant leaks, or system failure costs ($3,000–$15,000+). When selling, you must disclose unpermitted work on the TDS (Texas Real Estate Commission Seller's Disclosure form), which often leads to buyer demands for removal or price reductions of $2,000–$8,000.

How do I know if I need ductwork sealing testing for my new system?

Converse Building Department enforces IECC Section 403.2.5 ductwork tightness. For simple condenser/furnace replacements in the same location with existing ductwork, no test is typically required — a visual inspection suffices. For new ductwork installations or major ductwork redesigns, the inspector will likely require a blower-door duct-leakage test (cost $300–$600) to confirm air tightness (max 15% of system airflow at 25 Pa). Ask your contractor or the permit intake staff (via the portal or phone) whether your scope triggers the test requirement; waiting until rough-in inspection to learn this can delay your project 1–2 weeks.

Can I pull a permit for HVAC work on a rental property I own?

No. Texas Occupations Code Section 1703.002 allows owner-builders to pull permits only for owner-occupied residential properties. Rental properties, investment properties, and commercial buildings require a licensed mechanical contractor to pull the permit. Many homeowners attempt to circumvent this by pulling the permit in their name and then hiring a contractor 'under the table' — this is permit fraud and voids your homeowner's insurance. You must hire a licensed contractor; they will pull the permit in their name or as the permit applicant, and you will pay the permit fee (typically included in the contractor's bid).

What is the cost of an HVAC permit in Converse?

Converse permits are assessed based on the estimated system value: typically 1–2% of the installed cost for residential replacements (roughly $80–$150 for a $5,000–$8,000 system) and 2–3% for new systems or ductwork (roughly $200–$600 for a $10,000–$20,000 project). Commercial permits and projects with ductwork design review are on the higher end. The exact fee is calculated during permit intake and is due at application submission (payable online via the portal).

How long does it take to get a permit approved in Converse?

Expedited residential permits (same-location equipment replacement) are approved within 2–5 business days via the online portal if the application is complete. Standard plan-review permits (new ductwork, rental properties, commercial) take 7–10 business days for residential and 7–14 days for commercial. Turnaround can extend by 1–2 weeks if the reviewer flags deficiencies (e.g., equipment below IECC efficiency minimums, incomplete ductwork drawings, or missing AHRI certificates). Submit your application at least 2–3 weeks before your desired start date to allow for standard review and any remedial submissions.

Do I need to have my ductwork inspected before the AC is installed?

Yes, if you're installing new ductwork or significantly modifying existing ducts. Converse requires a rough-in inspection after ductwork is installed but before the air handler and condenser are connected. The inspector verifies ductwork insulation (R-6 minimum in attics, R-8 in conditioned spaces per IECC), sealing, and condensate-line routing. For replacement systems in the same location using existing ductwork, a rough-in inspection may be waived if the permit is routed to expedited review. Confirm with the permit office during intake.

What is the difference between IECC 2015 and earlier building codes in Converse?

Converse adopted the 2015 International Energy Conservation Code (IECC), which mandates higher efficiency standards for HVAC equipment (minimum 16 SEER for AC, 8.5 HSPF for heat pumps in climate zone 3A) and stricter ductwork sealing and insulation requirements compared to older codes. If your home was built under an older code, any permit you pull for replacement or new installation must comply with the 2015 IECC — you cannot 'grandfather' in older, less efficient equipment. This is enforced automatically by Converse's online portal through AHRI efficiency cross-checks.

Can a homeowner do HVAC work themselves and pull a permit in Converse?

Yes, if you own and occupy the home as your primary residence. Texas allows owner-builders to perform mechanical work on owner-occupied single-family residences and pull permits themselves (no contractor license needed). However, you must be the property owner, live in the home, and either perform or directly supervise the work. You cannot hire a contractor and simply pull the permit in your name — that is fraud. If you elect to do the work yourself, you will be responsible for scheduling inspections and ensuring the work complies with code; the inspector may require you to demonstrate understanding of HVAC basics during inspection.

What happens if I don't schedule the final inspection after my HVAC system is installed?

Your system is not legally operational without a final inspection sign-off. If you or the contractor operate the system without final approval, you risk a $250–$500 stop-work citation from Converse code enforcement. Additionally, unpermitted operation may void insurance coverage. Schedule the final inspection within 10 days of system completion via the online portal or by calling the building department; typical turnaround for final inspection scheduling is 1–3 days. If you miss the 10-day window, you may need to renew the permit (additional fee) or submit a request for extension.

Disclaimer: This guide is based on research conducted in May 2026 using publicly available sources. Always verify current hvac permit requirements with the City of Converse Building Department before starting your project.