HVAC contractor

Walley's Heating & Air Conditioning

Walley's Heating & Air Conditioning has been raising the bar for home comfort in Walley's Heating & Air Conditioning with a philosophy we live by: By Walley’s. By the Book. We’re not your average mech...

3+ Services
4.7 Star Rating
100% Satisfaction
Trusted Professional Service
Rating 4.7 / 5 Stars
Availability Fast Response
Specialty HVAC contractor
About Walley's Heating & Air Conditioning
Certified Professionals Quality Guaranteed

About Walley's Heating & Air Conditioning

Walley's Heating & Air Conditioning has been raising the bar for home comfort in Walley's Heating & Air Conditioning with a philosophy we live by: By Walley’s. By the Book. We’re not your average mechanical contractor. Our team treats every service call, installation, and maintenance plan as a partnership, not a transaction. Whether you need a quick diagnostic on a gas furnace, a complete overhaul of your central air, or a new energy-efficient water heater, we bring precision, transparency, and respect for your home.What sets us apart? We follow manufacturer specs and industry best practices down to the last bolt. No shortcuts. No hidden upcharges. You'll see it in our project process and he...
Heating System Repair & Installation
Air Conditioning & Cooling Solutions
Water Heater Installation & Repair
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Our Services

Professional solutions tailored to your specific needs — delivered with expertise and care.

Heating System Repair & Installation

When the temperature drops in Walley's Heating & Air Conditioning, a reliable heating system isn't a luxury — it's a necessity. Walley’s Heating & Air Conditioning specializes in gas furnaces, oil boilers, heat pumps, and zoned heating systems. Our NATE-certified technicians can diagnose and repair almost any make or model, often in a single visit. If your system is beyond repair or inefficient, we provide expert replacement services using top-tier brands like Viessmann. The process begins with...

Air Conditioning & Cooling Solutions

Don't let Walley's Heating & Air Conditioning summer heat catch you off guard. Walley’s provides complete air conditioning services — from routine maintenance to high-efficiency replacements. We handle central AC systems, ductless mini-splits, and even hybrid heat pump setups. Our repair process is fast and transparent: we run diagnostic tests, identify the root cause, and present options before any work begins. For new installations, we size your equipment using Manual J calculations to elimina...

Water Heater Installation & Repair

Running out of hot water? Rust-colored water? Unusual noises from your tank? Walley’s Heating & Air Conditioning is your go-to expert for all water heater needs in Walley's Heating & Air Conditioning. We service conventional tank-style heaters, tankless (on-demand) units, and even hybrid heat pump water heaters. Our diagnostics are thorough — we check elements, thermostats, gas valves, and venting. If repair isn't cost-effective, we provide honest replacement recommendations. Installation includ...

HVAC contractor

We handle the full range of heating and cooling work for homes, from quick diagnostics and repairs to complete system installations and ongoing cleanings. Our team treats each job as a partnership, following manufacturer specs and industry practice, and giving you clear options and pricing before any work begins. Whether your system needs a simple fix or a full replacement, we aim to keep your home comfortable through every season while helping control your energy costs.

Heating repair in Walley's Heating & Air Conditioning

When your heat stops working, we start with a careful diagnosis to find the actual cause instead of guessing. Our NATE-certified technicians work on most makes and models of gas furnaces, oil boilers, heat pumps, and zoned systems, and in many cases can finish the repair in a single visit. If the system is beyond repair or no longer efficient, we will explain your replacement options in writing. Emergency no-heat calls get priority, including evenings and weekends.

Installation Walley's Heating & in Air Conditioning

Our installations follow a methodical process. We start with a home evaluation and a written estimate, then remove the old equipment, make any ductwork or venting changes needed, and calibrate the new unit to the manufacturer's specifications. We handle permits and code compliance, test every safety control, adjust airflow, and walk you through how the system works. Financing options are available, and we can help you look into applicable rebates.

Emergency furnace repair Walley's Heating & in Air Conditioning

A furnace failure in cold weather can't wait for regular business hours, so we keep emergency lines monitored and answer calls into the evening, with weekend availability for no-heat situations. Our technicians diagnose the problem on arrival, check ignition, controls, and safety components, and explain what needs to be done before starting any repair. Frozen pipes and uncomfortable nights are the reasons we prioritize these calls.

Water heater replacement Walley's Heating & in Air Conditioning

If your water heater is no longer worth repairing, we can replace it with a conventional tank, a tankless unit, or a hybrid heat pump model. We size the new unit based on your household's peak hot water use and install it with code-compliant piping, temperature and pressure relief valves, and expansion tanks where required. Tankless systems heat water only as you need it, which can lower standby losses. We also show you how to maintain the new unit so it lasts.

Ductless mini-split installation Walley's Heating & in Air Conditioning

Ductless mini-splits are a good fit for room additions, garages, and homes without existing ductwork. We size each system using Manual J load calculations so rooms stay evenly cooled and humidity stays under control. Our installers mount the indoor units, run the lines, and test the system before we leave, and we clean up the work area completely. We can also set up hybrid heat pump configurations if you want both heating and cooling from one system.

Boiler service

We service oil and gas boilers with a thorough inspection and cleaning, checking burners, controls, safety devices, and venting. Regular service helps keep the system running efficiently and can catch small problems before they leave you without heat. If a boiler needs repair or has reached the end of its useful life, we will evaluate the options and give you a clear written estimate before anything is started.

Central AC repair Walley's Heating & in Air Conditioning

When your central air stops cooling, we run diagnostic tests to find the root cause and present your repair options before doing any work. Common fixes include capacitors, refrigerant issues, and electrical components, and we check the whole system to prevent repeat breakdowns. We aim for same-day service when possible and offer after-hours phone support during heat waves. Our technicians protect your floors and clean up after every job.

Reviews

4.7
★★★★★
out of 5
15 Reviews Based on verified customer feedback
★★★★★
I had my boiler replaced. The two gentlemen that installed the boiler did an excellent job. Their technician (Spencer) was very knowledgeable. I would recommend Walleys for all your plumbing and hvac concerns! Services Heating system repair, Heating system installation
B
Bud Clegg
★★★★★
As a mechanical engineer, I recently had to replace the majority of the gas piping in my home due to improper sizing and poor prior installation. I obtained bids from five contractors for comparison. Walley’s stood out as the best option in terms of both pricing and quality. Their proposal was clearly itemized, which made it easy to understand the full scope of work and compare costs transparently. From an execution standpoint, their workmanship was excellent. The installation was clean, well-organized, and professionally completed. They communicated clearly throughout the project and ensured I was fully satisfied with the results. I highly recommend Walley’s and would confidently use them again for both my personal residence and client projects. Price assessment Great price Price $1,000+ Services Service not listed
A
Amir Mortazavi
★☆☆☆☆
Called for service on my Rinnai tankless water heater. The unit is making a sputtering noise when running. Charged $200 for a service call. Tech couldn't figure out the issue, said he would contact Rinnai. He took a video with sound to send to Rinnai, and said they would contact me by the following Monday. Never heard anything......months later, I got 2 calls from Walleys on the same day, from 2 different employees, who promised to investigate and get back to me. ...Nothing...no callback, no diagnosis, no repair made...Ads said Rinnai experts... Call someone else...I lost $200 and got zero service.... After posting the review, Walleys contacted us and apologized profusely for their shortcomings. They promised a refund and offered to have a tech come out again. We declined the service offer and the refund check arrived yesterday. Price assessment Overpriced Price $200–300 Services Water heater repair
J
Jim Ellis
★★★★★
Short version: Good service, install cleanliness was superior, on time, and done fast! Follow up service a year later, willing to negotiate on price, accommodating. Cons? None really. We didn’t have a reference to how the units looked that we were getting. Spend the money and go with Emura. But the ones we have work fantastic. Note: Multizone units only go down to 64 degrees while single zones go down to 60. We were really happy with Walleys and their professionalism and dealing with everyone was great. Positive Professionalism
J
Joel Taft
★★★★★
I have seen the trucks around Nashua and called for an appointment since my air conditioner wasn’t working. Dave Bradford from Walleys came out and did a assessment of what I had installed. He made some suggestions and I got my quote s within a few days with varying prices, to choose what suited me best for my home and my budget..I chose the best equipment since everything is going up, electricity, gas etc..and you get a rebate from NH Saves for Energy Star equipment, plus I planned on staying here for many more years. I highly recommend Walleys you won’t be disappointed! Oh yea a smart thermostat will get you 85.00 off Positive Responsiveness, Punctuality, Quality, Professionalism, Value Services Install AC, Heating system installation, Install thermostat, Water heater installation
G
Gary Stefanowicz
★★★★★
Furnace stopped working very early on a Saturday morning so we called Walley’s Heating & Air to check it out. In a short time a kind technitician came over and looked the furnace over and diagnosed the issues, ordered the parts, and even returned after his very long day of work, to provide us with a few electric heaters to keep is all warm durring this chilly winter until the parts become available in a couple of days and the furnace gets repaired. This company is amazing and they go above and beyond to make a tough situation so much more comfortable. Thank you Walley’s! Price assessment Great price Services Heating system repair, Service not listed
D
Danielle Zanco

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Address 1 Tara Blvd #200, Nashua, NH 03062, United States

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