18 Best plumbing Companies in Fort Collins, CO.
Why Fort Collins winters push more homeowners toward "plumbing"
Short, intense cold snaps and high heating loads make reliable replacement furnaces important for Fort Collins, CO homeowners. Searching for the best furnace replacement companies in Fort Collins, CO centers on licensed installations, local code familiarity, and clear upfront pricing.
What separates these 15 Fort Collins "plumbing" pros by reviews and local reach
| # | Provider | Score | Years | Best for | |
|---|---|---|---|---|---|
| 1 | FFort Collins Heating & Air Conditioning | 92 | 4.9 (3,905+) | 92+ | ★ Highest Vouched ScoreHigh-Efficiency (95%+ AFUE) Upgrades |
Editorial: Duct cleaning specialization is listed alongside duct sealing and IAQ equipment. The company reports financing options on its website. Fort Collins Heating & Air notes family ownership across four generations. Fort Collins winters and regional wildfire smoke increase local IAQ demand. Google reviews cite technicians who explain repairs and perform thorough work. Strengths:
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| 2 | AAllen Service | 88 | 4.8 (6,745+) | 64+ | |
Editorial: Allen Service lists furnace replacement and new-installation work for gas furnaces. The company reports family ownership since 1962, supporting local continuity. Fort Collins' cold winters and high-elevation drafts make proper sizing crucial for local homes. Allen Service advertises 24/7 emergency response for breakdowns. The website notes financing plans and a Membership Rewards maintenance program. Strengths:
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| 3 | LLion Home Service | 86 | 4.7 (6,195+) | ||
Editorial: Lion Home Service lists furnace replacement and full-system changeouts as core offerings. Financing is available, per their site. Emergency response is advertised as same-day or 24/7 dispatch. Reviewers note next-day appointments and prompt callbacks after service visits. Fort Collins winters increase demand for timely gas furnace replacements and reliable emergency response. Strengths:
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| 4 | RRex's Plumbing & Heating | 85 | 4.9 (1,055+) | ||
Editorial: Rex's lists gas furnace replacement and same-day emergency changeouts across Northern Colorado. Strengths:
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| 5 | AAAA Service Plumbing, Heating & Electric | 85 | 4.9 (770+) | 43+ | NATE-Certified Installer |
Editorial: AAA Service lists ducted air-source heat pump installation and cold-climate Hyper-Heat capability. Strengths:
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| 6 | BBalance Point Heating, Cooling & Plumbing | 82 | 5.0 (740+) | 28+ | Labor Warranty |
Editorial: Balance Point leads with a focused furnace replacement offering and routine system changeouts. The company notes a 3-year labor warranty on equipment installs. Balance Point states same-day emergency response and advertises 24/7 availability. Founded in 1998, Balance Point shows 25+ years serving Fort Collins homeowners. Review excerpts mention prompt arrival and fast emergency fixes. Strengths:
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| 7 | HHorsetooth Heating, Air & Plumbing | 81 | 4.9 (630+) | 9+ | |
Editorial: Horsetooth lists furnace replacement and Lennox product installs among core services. Reports 5+ years operating from Fort Collins since 2017. Advertises emergency response available 24/7 and same-day service. Reviews cite prompt written assessments and clear communication after service visits. Strengths:
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| 8 | CCool Ducts Heating and Cooling | 80 | 4.9 (475+) | ||
Editorial: Cool Ducts lists furnace repair and diagnostics as a core specialty. Their site lists NATE-certified technicians. The company advertises same-day emergency response and dispatches during cold snaps. Cool Ducts notes assistance navigating state and utility rebate programs. Local reviewers cite on-time arrivals and quick parts-on-truck repairs. Strengths:
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| 9 | WWelzig Heating, Cooling, Plumbing & Electric | 79 | 5.0 (345+) | 32+ | |
Editorial: Welzig lists emergency service with same-day and after-hours response. The company notes Bryant equipment on its product pages. Welzig reports financing options and free estimates on the site. Founded in 1994, Welzig shows about 30+ years local tenure. Fort Collins winters and summer swings drive demand for both heating and cooling services here. Strengths:
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| 10 | NNorthern Air | 76 | 4.7 (305+) | Proper SizingFurnace + AC ChangeoutManufacturer-Authorized Installer | |
Editorial: Northern Air advertises a furnace-repair focus with detailed diagnostics for named parts. Northern Air notes Lennox Premier Dealer status for manufacturer parts access. Northern Air says they provide 24/7 emergency response and same-day service coverage. Northern Air reports 30+ years serving the Front Range and cold Colorado winters. Northern Air maintains fully stocked service vehicles for faster first-visit repairs. Strengths:
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| 11 | LLong Heating & Air | 72 | 4.9 (190+) | 9+ | Combustion-Safe Installation |
Editorial: Long Heating & Air lists furnace replacement and full-system changeouts as specialties. Long Heating & Air notes combustion testing and carbon monoxide checks with installs. Long Heating & Air advertises free same-day estimates and financing options. Founded 5+ years ago, Long Heating & Air serves Fort Collins and Northern Colorado. High-altitude winters in Fort Collins increase the need for correct venting and combustion commissioning. Strengths:
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| 12 | PPoudre Valley Air | 71 | 4.6 (430+) | 53+ | |
Editorial: Poudre Valley Air focuses on commercial and custom residential HVAC projects across the region. Strengths:
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| 13 | SSwan Plumbing Heating & Air of Fort Collins | 65 | 4.8 (90+) | ||
Editorial: Furnace replacement is a core focus, with furnace installation cited across their site. Swan Plumbing Heating & Air lists same-day service and next-day installation. The company advertises financing options for larger replacements. Fort Collins winters mean reliable gas heating is critical, and they note emergency response availability for outages. Strengths:
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| 14 | HHooley Heating & Air Conditioning | 65 | 4.6 (115+) | ||
Editorial: Hooley emphasizes furnace replacement and installation work across Fort Collins. The website notes same-day emergency response for urgent heating failures. Hooley advertises financing options, subject to credit approval. Reviews mention punctual, thorough technicians and multi-year customers. Fort Collins' winter cold makes timely, combustion-safe heating service especially important. Strengths:
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| 15 | RReliable Fort Collins HVAC Repair | 56 | 5.0 (8) | ||
Editorial: Reliable Fort Collins HVAC Repair focuses on heating and cooling repair in Fort Collins neighborhoods. Reviewers flag:
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Typical Furnace Replacement costs in Fort Collins, CO (2026)
Last updated
Estimated ranges for Fort Collins, CO. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| Full gas furnace replacement (80% AFUE, installed) | $3,250–$7,050 |
| High-efficiency condensing furnace (95%+ AFUE, installed) | $4,850–$10,300 |
| Modulating / two-stage variable-speed (ECM) furnace upcharge | $650–$2,150 |
| Condensing-furnace venting + condensate conversion (80%->95% AFUE) | $650–$1,950 |
| Gas line / electrical / permit modification (changeout) | $160–$975 |
| Electric furnace / air-handler replacement (installed) | $2,150–$5,400 |
Nearby Colorado furnace replacement pricing: Arvada · Aurora · Boulder
See broader context: Furnace Replacement pricing in Colorado · Furnace Replacement pricing nationwide
How were these Fort Collins "plumbing" providers evaluated?
This guide evaluated 15 Fort Collins furnace replacement providers by review volume, ratings, service specializations, and verifiable signals like certifications, pricing models, and emergency availability. The analysis weighted Google review counts, advertised warranties, and manufacturer-dealer or certification claims when comparing contractors.
- Fort Collins Heating & Air Conditioning states a satisfaction guarantee and shows 3,905 Google reviews. This influenced reliability scoring according to Google Maps data.
- Rex's Plumbing & Heating lists free estimates and 25+ years in business. These attributes raised its practical value for replacement planning.
- AAA Service Plumbing, Heating & Electric notes flat-rate pricing and NATE certification. Those factors were scored as transparent-pricing and technical competency signals.
- Northern Air is identified as a Lennox Premier Dealer and reports Manual J sizing and proper-install tooling. Manufacturer-dealer status and load-sizing capability were scored higher.
- Balance Point Heating, Cooling & Plumbing advertises a 3-year labor warranty (labor warranty advertised). Warranty length was used to compare post-install protection.
- Cool Ducts Heating and Cooling and Long Heating & Air report free estimates and NATE or combustion-safety capabilities. Those service signals improved installation-quality estimates.
Ratings and review volume came from Google reviews, while accreditation and complaint history should be checked via BBB records before hiring.
How do I choose a plumbing Company in Fort Collins?
- Verify licensing and complaint history via the BBB and the state licensing board.
- Compare Google review counts and recent review sentiment for installation work.
- Confirm pricing model and any flat-rate or finance options listed on provider pages.
- Request proof of proper-install tooling, Manual J sizing, and manufacturer-dealer status.
- Request written warranty terms and ask about emergency service availability.
5 furnace replacement headaches Fort Collins homeowners report — and when they signal a replacement
What are the most common furnace replacement problems in Fort Collins? Short, intense cold snaps and high heating loads often reveal aging furnaces, repeated short-cycling, and altitude-related combustion issues. Homeowners seeking affordable furnace replacement services Fort Collins, CO choose replacement when reliability or safety declines.
- Repeated short-cycling and heat-exchanger stress. Fort Collins' pattern of quick cold snaps forces frequent on/off cycles that accelerate wear and can crack heat exchangers.
- Excessive runtime and premature component failure. Higher seasonal heating loads in Fort Collins make older units run continuously, wearing out blowers, capacitors, and controls faster.
- Combustion and draft problems at altitude. Fort Collins' elevation can impair burner adjustment and flue draft, causing inefficient combustion or spillage that signals replacement or reconfiguration.
- Condensation and flue corrosion from wide temperature swings. Big freeze-thaw swings in northern Colorado increase moisture stress in venting and transition pieces, leading to rust and exhaust leaks.
- Incorrect sizing revealed by severe cold. Furnaces that seemed adequate in mild weather may short-cycle or fail during Fort Collins cold snaps when undersized, indicating the need for a properly sized replacement.
Fort Collins homeowner realities: population density, seasonal demand, and local licensing notes that affect "plumbing" projects
Fort Collins' short, intense cold snaps and high elevation increase heating loads and combustion sensitivity. These conditions raise replacement demand and push homeowners toward higher-efficiency, properly sized furnaces with altitude-aware combustion setup and proper-install tooling.
Fort Collins sees sudden winter cold snaps that spike heating demand. Home heating systems run longer during those events. Longer runtimes accelerate wear on blowers, controls, and heat exchangers.
The city's elevation affects burner adjustment and flue draft. Poorly adjusted combustion causes inefficiency and can create safety risks. Replacement projects often require combustion tuning and vent reconfiguration.
Colorado has no statewide HVAC license. Licensing and permits depend on local jurisdiction. Homeowners should confirm local permit needs before replacement.
Evaluated providers commonly advertise emergency service and manufacturer credentials. Look for NATE certification and dealer status, such as Lennox Premier Dealer, when comparing options.
Because Fort Collins demand emphasizes reliability, many contractors invest in proper-install tooling and efficiency-tier equipment. These capabilities help ensure correct furnace sizing, secure venting, and efficient operation at elevation.
How much should Fort Collins homeowners expect when arranging a "plumbing"?
- How do I get a quote from these furnace replacement companies?
- Submit one request on this page and we send it to the vetted furnace replacement pros in Fort Collins, CO listed here. They send quotes back — no obligation.
- How much does furnace replacement service cost in Fort Collins, CO?
- Full gas furnace replacement typically runs $3,250–$7,050, and high-efficiency condensing furnace runs $4,850–$10,300 in Fort Collins, Colorado. See the Furnace Replacement pricing table on this page for the full per-service breakdown.
- Do I need a city permit for a furnace replacement in Fort Collins?
- Yes. Furnace replacements commonly require a permit when they affect venting, gas piping, or electrical systems. Colorado has no statewide HVAC license, so permit rules are set by the local jurisdiction. Homeowners should confirm permit requirements with Fort Collins building services before hiring a contractor. Contractors can often pull permits on a homeowner's behalf if authorized.
- Is a local HVAC license required to install a high-efficiency furnace in Fort Collins?
- No statewide HVAC license exists in Colorado, so local licensing applies. Some Fort Collins subcontractors work under a plumbing, mechanical, or electrical license depending on the scope. Request the contractor's local license or permit history and verify with city licensing to confirm they may legally perform the installation.
- Are same-day or emergency furnace replacement services available in Fort Collins during a cold snap?
- Many contractors offer same-day or emergency replacement during cold snaps. Availability depends on current demand and parts stock. Call multiple evaluated providers early, ask about emergency response windows, and request a written timeframe for any promised same-day service.
- How do I find a contractor who specializes in high-efficiency or combined furnace-and-AC replacements in Fort Collins?
- Look for contractors that advertise manufacturer-dealer status and NATE-certified technicians. Also verify experience with altitude adjustments and combustion testing. Ask for recent local references and examples of complete furnace-and-AC changeouts. Compare written estimates that list efficiency ratings, expected airflow, and required venting work.
- Does Fort Collins require special gas-line work permits or a master-level license for gas furnace replacements?
- Gas-line work and connections commonly trigger local mechanical or gas permits in Fort Collins. Permit and licensing tiers vary by jurisdiction because Colorado lacks a statewide HVAC license. Confirm the contractor's qualifications for gas piping and request permit documentation before work begins.
- What factors most affect furnace replacement pricing for Fort Collins homeowners?
- Key factors include furnace efficiency, required venting or chimney work, gas-pipe changes, duct modifications, and altitude-aware combustion setup. Home age and access to the furnace location also influence labor. Seasonal demand during cold snaps can raise lead times and affect scheduling, which may indirectly affect final costs.
- When should Fort Collins homeowners replace both furnace and central AC together?
- Replacing both systems is advisable when the furnace and AC are the same age and the HVAC layout needs coordinated duct or control upgrades. Combined replacement ensures matched efficiency and better airflow. Ask for a combined-system evaluation to see whether shared ducting or single-point controls justify a paired changeout.
- Are oil furnace replacements different in Fort Collins compared with gas models?
- Yes. Oil-to-oil replacements follow similar mechanical rules, but oil-to-gas conversions add fuel-supply and venting changes that trigger specific permits. Oil equipment also requires different combustion and storage considerations. Verify the contractor's experience with oil systems and any fuel-conversion permitting requirements.