Boulder HVAC & Plumbing
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Heating, Cooling & Plumbing Services in Boulder, CO
Keep your home comfortable all year round with comprehensive plumbing, heating, and cooling services in Boulder, CO. Our team of licensed HVAC technicians and plumbers are on hand for standard bookings and emergency repairs so you’ll never be left without the services you need.
Discover our full range of Boulder HVAC and plumbing and learn how Sanders and Johnson can support your home today.
Full-Service HVAC & Plumbing Experts in Boulder
At Sanders and Johnson, we offer comprehensive home services to keep your Boulder home comfortable. Our full-service HVAC solutions support furnaces, boilers, air conditioners, ductless mini-splits, and heat pumps, while our plumbing services include gas lines, plumbing fixtures, pipes, water heaters, and more. Whether you’re looking for routine maintenance, a new installation, or repairs, our team is on hand for all your HVAC and plumbing needs.
Furnace Repair & Heating Services in Boulder
With average winter lows of 23°F, dependable heating is important in Boulder. We repair, install, and maintain common heating systems including furnaces and boilers so you can enjoy year-round home comfort.
Common heating problems we fix
We fix a wide range of common heating problems, including Boulder furnace repair services and boiler services for your home:
- Furnace short cycling
- Inconsistent heating
- Clogged or dirty furnace filters
- Broken pilot light
- Leaking boiler
- Frozen condensate pipe
- Radiator problems
- Thermostat issues
Air Conditioning Repair & Service in Boulder
Beat the summer heat with professional air conditioning service in Boulder, CO. We install, repair, and maintain a wide range of AC makes and models so you’ll never be stuck without cooling in your Boulder home.
Signs it’s time to call for AC repair
Worried your AC may be struggling? Browse these common signs that it’s time to call for air conditioning repair in Boulder, CO:
AC blowing warm air
If your AC turns on but won’t blow cold air, it’s often a sign of low refrigerant levels. Not only does this prevent your AC from cooling, but it can be dangerous if you touch or inhale refrigerant. Our HVAC pros can get the problem diagnosed and repaired so you can enjoy a cool and comfortable home.
Loud noises
When your AC is working properly, it might make a quiet hum, but you shouldn’t notice any banging, grinding, whining, or other loud noises. If your air conditioner makes unusual sounds when you turn it on, it could indicate a mechanical issue. This can damage other components if left unfixed, so it’s best to turn off your AC and call a pro.
Bad smells
If you notice a musty, rotten-socks smell coming from your AC, it could be a sign of mold and mildew growth in your filters or vents. A burning smell can indicate a mechanical or electrical problem, while a sweet, chemical smell means a refrigerant leak which is toxic if touched or inhaled. Any bad smell can pose a safety risk and should be addressed, but burning smells and chemical smells are emergencies that need an immediate fix. If you suspect a fire hazard or refrigerant leak, turn off your AC immediately and call for emergency repairs.
Unexplained rising energy bills
A gradual rise in your energy costs without a clear explanation may be due to an aging AC system that’s no longer operating efficiently. A sudden spike in your bill can mean a broken part that’s causing your AC to malfunction. Scheduling repairs can get your AC running properly and bring your energy costs back down to normal.
Heat Pump Service & Installation
Looking for an energy-efficient way to keep your home warm in winter and cool in summer? We offer comprehensive heat pump services in Boulder for a dual-function heating and cooling solution.
Benefits of installing a heat pump in Boulder, CO
Heat pumps are popular thanks to their energy-efficient operation, which can reduce energy consumption for heating by up to 75% compared to traditional systems like furnaces, according to the Department of Energy. Heat pumps also offer convenience thanks to their ability to both heat and cool your home.Â
If you’re considering installing a heat pump in your Boulder home, it’s recommended to still keep a back-up heating option like a furnace for extremely cold days. Heat pumps have a temperature range in which they’re most efficient, but some of Boulder’s coldest days exceed this range. Our heat pump technicians can talk to you about your home’s needs and whether a heat pump is a good choice for you.
Licensed Plumbers in Boulder, CO
Sanders and Johnson is your go-to solution for comprehensive plumbing services in Boulder, CO. We handle all home plumbing needs, from routine annual maintenance and plumbing inspections to plumbing repairs. Our plumbers are licensed and experienced at dealing with Boulder plumbing challenges, including frozen pipes and other issues caused by cold winters and weather fluctuations. If you suspect a plumbing issue, it’s best to call a pro promptly to avoid the risk of costly emergency repairs and water damage.
Common plumbing services we offer
From clogged pipes to a broken water heater, our professional Boulder plumbers are on hand to solve all your home plumbing concerns. Explore our plumbing services, including:
- Traditional and tankless water heater services
- Toilet installation
- Sewer line repair and replacement
- Plumbing inspections
- Sewer and drain cleaning
- Clog detection and removal
- Gas leak detection
- Gas line installation and repair
- Water line services
- Repiping
- Water quality and treatment solutions
- Garbage disposal installation and repair
Our Colorado Service Area
Located outside of Boulder? No worries, we’ve got you covered with professional home services covering the greater Denver area. Explore our service area, including:
Why Boulder Homeowners Choose Sanders & Johnson
Discover why local homeowners count on Sanders and Johnson for Boulder home services:
Expert solutions
At Sanders and Johnson, our team of professional plumbers and HVAC technicians are knowledgeable, licensed, and experienced. We’ll show up on time, provide you with a clear quote, and get straight to work diagnosing and solving your home service needs.
Local and family-owned
As a family-owned business, we’re committed to serving the Boulder community and providing effective and affordable home solutions. We have over 40 years of experience with the unique challenges of the Denver area, including climate, boilers, and the plumbing and HVAC systems of older homes.
Transparent pricing and flexible financing
We pride ourselves on delivering real solutions, not just selling you another piece of equipment. We’ll talk to you about your HVAC and plumbing system and provide the right technical services, with no upsells or unnecessary extras. We also offer financing solutions so you can access the home services you need on a plan that fits your budget.
Call Sanders & Johnson for Expert Home Services in Boulder, CO
Looking for prompt and professional home services in Boulder, CO? From broken boilers to clogged pipes, we’re on hand with expert HVAC and plumbing solutions. Schedule your service today to discover the Sanders and Johnson quality difference.
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Trusted, Award-Winning Air Conditioning and Heating Services
Customer Education
Our team prefers to educate our customers in a thoughtful way, so you receive the most accurate solution. All services are tailored to your needs without any upselling, gimmicks, or surprises at the end.
Award-Winning Workmanship
We’re proud to provide our customers with top-notch service on every call. In fact, we’ve won awards for it, including the 2017 Lennox Midwest Partner of the Year.
Fast Response
Your calls are greeted by our in-house staff, who will schedule you for immediate service. Same-day service is available for most emergencies so you rarely have to wait to get your problem under control.






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Service Areas
Sanders & Johnson serves the entire Denver metro area and surrounding communities.
- Aurora
- Black Hawk
- Breckenridge
- Brighton
- Denver
- Dillon
- Evergreen
- Frisco
- Georgetown
- Littleton
- Parker
- Silverthorne
- Westminster
- Wildernest
Other Cities We Serve
- Arvada
- Englewood
- Northglenn
- Broomfield
- Golden
- Park Hill
- Castle Rock
- Greenwood Village
- Superior
- Centennial
- Highlands Ranch
- Cherry Creek
- Lakewood
- Washington Park
- Cherry Hills
- Lone Tree
- Morrison
- Wheat Ridge
- Thornton