Top-rated swamp cooler installers and replacers.

Get matched with top swamp cooler installers and replacers in Northwood, NH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Swamp cooler installers and replacers in Northwood

Avatar for Heritage Home Service
Heritage Home Service
4.18(
422
)

Angi Approved

In business since 1986

Free estimates

Emergency services offered

"All I needed was a replacement for a broken, rusted toilet flange that was set in cast iron. The technician was very professional, and the quality of the work was excellent—I could never have done it myself. I gave 4 stars instead of 5 only because of the cost ($650). To be fair, I didn’t get any other estimates, but it did seem a bit expensive for a job that took only one hour."
6 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Meredith Plumbing & Heating
Meredith Plumbing & Heating
4.38(
13
)

Angi Approved

In business since 1985

Free estimates

Emergency services offered

"Install was scheduled for 9:30 EST 12/22/2025. At approx10:30am called to inquire as to his status. He told me he was 10 mins away. He arrived an hour later. He was somewhat agitated on arrival. We together unboxed the new faucet and he examined the existing functional kitchen faucet. The system in place was result of new construction in 2017.He raised no concerns about new product quality or concerns about getting the job done. He was at the job approx. 2 hours and I was present close by throughout. After approx. one hour he became more and more agitated. He asked me to show him the basement as he "needed more length" to hook up the product. No changes took place in the basement. Shortly thereafter he announced the new product was "cheap" and suddenly "fell apart". He became agitated and told me the only option was to return the product and that he now had to replace the previous existing faucet. At this time on my exam noted one of the water hoses on the new product was no longer functional. There was a short extension on the other hose which I commented seemed to imply he had realized the new product hoses were too short. He quickly took off that extension and put it in his pocket, reiterated the new product was "junk". When done he asked me for 500$ for the two hours work and left. On my further exam of the new faucet after he left was clear he had been trying to stretch these short hoses to the point of damaging beyond repair both (please see pics) hoses. It was obvious all of this could have been avoided by adding extensions from the start. The under sink area would have easily accommodated this. In retrospect I am sorry I paid him. But, I am elderly, live on a rural dead end dirt road and just needed him out of the house. It is why I use a company like Angi to hopefully have some screening responsibility. Follow up communication has been difficult during the holidays. Ultimately I did speak with him. He continued to be dismissive and challenged me to seek legal recourse. I questioned his agitation that day. I asked if he had been drinking (both my parents were heavy drinkers and I regret not following that suspicion that day). He did not deny just replying "If you are so smart why didn't you do the job yourself". I told him that is why I strive to employ reputable contractors, always."
8 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Palmer Gas & Oil
Palmer Gas & Oil
4.76(
71
)

Angi Approved

Super Service Award Winner

In business since 1932

Free estimates

Emergency services offered

"PALMER GAS & OIL in Atkinson NH After 39 years with this company and at every residence since 1986, in new home commercial construction, this company is charging me $189 to remove "their" tanks from my property. I have never been late with a payment in almost 40 years. I found propane at a significantly lower rate, so I had to switch. I highly recommend Irving Oil & Gas, and say, BEWARE of Palmer Gas & Oil. expensive and greedy, no loyalty to good customers."
Recommended by95%of homeowners
Avatar for Callahan Electric
Callahan Electric
5.00(
5
)

In business since 2015

Free estimates

Emergency services offered

"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"
Recommended by100%of homeowners
Avatar for Auto Transport - United Freight Of America
Auto Transport - United Freight Of America
4.84(
920
)

In business since 2008

Free estimates

Emergency services offered

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."
Recommended by96%of homeowners
Joppa Remodeling LLC
New to Angi

In business since 2013

Free estimates

Emergency services offered

We are a full service remodeling company. All of our trades are licensed and insured

...
Showing 1-10 of 374
FAQs for swamp cooler installation and replacement projects in Northwood, NH

Swamp coolers are quite energy-efficient, using only 15% to 35% of the electricity that traditional central air conditioning units consume. This can lead to significant savings on your energy bills. However, keep in mind that swamp coolers require water to operate and may not cool your home as effectively in extremely hot or humid conditions. When considering overall efficiency, it is essential to weigh both electricity and water usage, as well as the cooling needs specific to your local climate.

Evaporative coolers only work in dry climates because they cool by moistening the air. If the air is already moist, this will have little to no cooling effect. Central AC is a better choice if you live in a humid climate, such as the Midwest, eastern, or western coastal regions.

To install a swamp cooler on a roof, a local HVAC specialist will first find and cut a spot free of wiring and obstructions. They’ll then install metal bracing, legs, brackets, the ceiling duct register, ductwork, power, and thermostat wires. Once installed, they’ll seal all openings, attach duct connections, and install a thermostat. Before leaving, they’ll run cool water piping to the unit and inspect all the connections.

The cost to repair your swamp cooler ranges from $50 to $600, depending on the issue, whether new parts are needed, and the chosen repair service. Depending on the type of pad your system uses, you will need to change out the pads every one to three years for proper operation. When budgeting for the cost to repair a window unit, expect to pay around $230.

The U.S. Department of Energy states that swamp coolers can cool a single room by five to 15 degrees Fahrenheit. However, this largely depends on the size and installation method of the evaporative cooler. You can only achieve these results in a dry climate, such as the American South, as it’s easier to cool rooms in humid environments with central air.

Swamp cooler water usage varies depending on the size of the unit. Smaller evaporative units may use one gallon per hour, while much larger units could use up to 15 gallons of water per hour. Most homeowners can expect their unit to use between seven and 10 gallons of water per hour of usage.

The Northwood, NH homeowners’ guide to swamp cooler installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.

  • Detail of a HVAC system outside a brick house

    The cost of replacing an AC unit fan motor depends on warranties, labor, season, and more. This cost guide covers everything you need to know about this HVAC part.

  • A boy changing thermostat’s temperature using a smartphone

    Budget for AC coil cleaning costs based on factors such as cleaning frequency, coil type, cleaning method, accessibility, ongoing maintenance, and more.

  • home air conditioner being recharged with freon

    Need an AC Recharge? Here’s how much it costs, what factors affect cost, and what to expect.

  • House humidifier on a return duct

    Wondering who installs whole-house humidifiers? Hire a licensed HVAC technician. Learn what they do, other pro options, and how to hire confidently