3.6 
11 *The Angi rating for Heating And Air Conditioning Service companies in Alstead, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Alstead, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on March 31, 2026
Serving Alstead, NH and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Very impressed with all services performed . They will now handle all plumbing needs moving forward."
Serving Alstead, NH and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"The company was extremely professional in terms of using the hose properly .They did everything in a timely manner. Very clean and efficient work! Excellent customer service all around!"
Serving Alstead, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"The technician was great he diagnosed the problem with my gas fireplace and fixed it right away. I definitely would recommend hiring Chimney and Duct Experts for their service."
+36
Serving Alstead, NH and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Exchanged messages with Mike to describe work needed, replace an outdoor faucet and shutoff value (previous faucet was leaking). He gave an estimate, reviewed work to be done. Replaced outdoor spigot with a frost-proof spigot, put on new value. Quick test and validation. Professional, efficient and happy with work done! Thank you Mike !"
Serving Alstead, NH and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
"I used ANGI for the first time and AS Plumbing and Heating contacted me promptly. They were able to provide services the same day. The service was exceptional and price was very reasonable. I would highly recommend this company and will use them in the future."
Serving Alstead, NH and surrounding areas
Approved
In business since 2022
Free estimates
Small jobs welcome
"Andy came right out and was very professional, answered all our questions and did an outstanding job. We highly recommend A2K Electrical."
Serving Alstead, NH and surrounding areas
Approved
Small jobs welcome
Credit card accepted
Offers commercial services
At CleanWell Solutions, we provide professional residential and commercial cleaning services with a strong focus on quality, reliability, and attention to detail. Our goal is to make every home or business feel fresh, clean, and comfortable.\n\nWe offer regular cleaning, deep cleaning, move-in/move-out cleaning, and customized cleaning services based on each client’s needs. We take pride in our work, treat every space with care, and always strive to exceed our clients’ expectations.\n\nWhen you choose CleanWell Solutions, you can expect professional service, clear communication, attention to detail, and a team you can trust. We are committed to delivering a clean space you can truly enjoy.
Serving Alstead, NH and surrounding areas
In business since 2021
Free estimates
Emergency services offered
"Jeff was professional and fast. He was upfront about the problem and very affordable. Lowest quote received and made sure I was happy with the work prior to leaving. Would recommend to anyone with hvac issues. I will be using him exclusively going forward."
Serving Alstead, NH and surrounding areas
In business since 2019
Free estimates
Emergency services offered
"Very easy to work with . Prompt fair . Very nice person. Would highly recommend"
+3
Serving Alstead, NH and surrounding areas
In business since 2006
Free estimates
Emergency services offered
"I would recommend Bill and his sonâ  s to anyone needing hvac work. All their workers were very conscientious and professional. I couldnâ  t be happier with the AC units that they recommended."
From average costs to expert advice, get all the answers you need to get your job done.
Get expert insights on radiant heating repair cost, including average prices, cost factors, and ways to save. Learn what impacts your radiant heating repair bill.
HVAC replacement costs depend on a lot of factors, like unit type, size, and labor. See what you can expect to pay for HVAC replacement here.
If certain rooms in your home run too hot or too cool, a duct booster fan may help with the issue. Learn the costs to expect from duct booster fan installation.
Retrofitting your house for AC is, surprisingly, not too hard. Here’s what you’ll need to consider to make it happen.
What is an air source heat pump, and is it right for you? Air source heat pumps are an effective and efficient home climate control solution. Read on for more information.
Your air conditioning unit is a lifesaver during those blisteringly hot summer months, but common air conditioning mistakes may be increasing your energy bill and decreasing overall efficiency. Read on to learn how to avoid them.
