North Shore Cooling Specialists
Top-Rated Cooling Services in Waltham, MA
Cooling emergency? We dispatch to Waltham the same day — most calls reached within about two hours.
Schedule Heating & Cooling Service
Same-day appointments · We call to confirm
Services We Offer in Waltham
Repairs & Maintenance
Not cooling, low refrigerant, or an annual tune-up.
Installation & Replacement
New systems, mini-splits and replacements.
What summer actually asks of a system in Waltham
Waltham gets about 76 days above 80°F in a year, and only about 15 above 90°F. That short, concentrated peak is exactly why an oversized air conditioner works badly here: it cools the air quickly, then shuts off before it has pulled the humidity out, leaving the house cold and clammy.
NOAA 1991–2020 Climate Normals, recorded at Hanscom Field in Bedford — the nearest reporting station, about 7 miles away.
Local systems
Waltham systems & permits
Adding central air or a mini-split in Waltham needs a flat $25 electrical permit from the Inspector of Wires - Sec. 13-2(b)(9) of the city code lists "air conditioners" at exactly that price - and no current may be turned on until the wiring passes his inspection. On sizing: NOAA's 1991-2020 normals for the Bedford station, roughly eight miles northwest, run 639 annual cooling degree-days against 6,207 heating degree-days at a 49.6-degree yearly average. Real cooling load, but a heating-dominated climate, so cooling stays secondary to heating capacity when equipment is sized.
Sources: ecode360.com · ncei.noaa.gov · data.census.gov
Waltham's City Code Sec. 13-2(b)(9) sets a flat $25 electrical permit fee specifically for "air conditioners," issued by the Inspector of Wires.
NOAA's 1991-2020 climate normals (versioned normals-annualseasonal-1991-2020 dataset) for station USC00190535 (Bedford, MA, elev. 160 ft, ~8 miles northwest of Waltham) show an annual average temperature of 49.6°F, 639.1 annual cooling-degree-days, and 6,206.9 annual heating-degree-days.
Waltham's zoning ordinance (Dimensional Requirements, Ch. Z) requires that mechanical equipment located on the roof of qualifying buildings be "selected and screened to reduce visual and noise impacts on residence districts" / "abutting residence districts."
Utility gas heats 53.7% of occupied homes in Waltham (13,813 of 25,721 households, ACS 2019-2023 5-year).
Why Waltham Chooses Spencer
Straightforward cooling work from a local team — clear pricing, licensed technicians, and appointments that actually happen when we say they will.
Licensed & Insured in Massachusetts
Every cooling technician we send to Waltham is fully licensed, insured and background-checked.
Upfront, Flat-Rate Pricing
You approve the price before any work begins. No hidden fees, no surprise charges, no overtime rates.
Same-Day Service
Same-day appointments across Waltham and the surrounding North Shore communities.
Family-Owned and Local
A local family business, not a national call centre. The person who answers is the person who dispatches.
What Spencer Customers Say
Google reviews for Spencer Home Services.
Cooling FAQs in Waltham
Still have a question? 978-293-5770
Cooling service in Waltham, and 66 nearby towns
We cover 67 towns across the North Shore, Greater Boston and southern New Hampshire.
67Towns covered
Essex County
- Amesbury
- Andover
- Ballardvale
- Beverly
- Boxford
- Danvers
- Essex
- Georgetown
- Gloucester
- Groveland
- Hamilton
- Haverhill
- Ipswich
- Lynn
- Lynnfield
- Manchester by the Sea
- Marblehead
- Merrimac
- Middleton
- Nahant
- Newbury
- Newburyport
- North Andover
- Peabody
- Plum Island
- Rockport
- Rowley
- Salem
- Salisbury
- Saugus
- South Hamilton
- Swampscott
- Topsfield
- Wenham
- West Newbury
Middlesex County
Rockingham County, NH
Norfolk County
- Brookline
No town by that name — try a nearby one.
Don’t see your town? Call 978-293-5770 — we cover more than we list.