Critical Mass SolarSolar installer in Fitchburg, MA
Critical Mass Solar is a solar installer in Fitchburg, MA, ranked #4 of 123 solar installers in Fitchburg and rated 4.9 from 59 Google reviews. Open Monday to Friday.
Fitchburg, MAUpdated 0 paid placements in any rankingHow we rank
Key facts
| Phone | (978) 272-1486 |
|---|---|
| Website | criticalmasssolar.com |
| Hours | Monday to Friday: 7 AM – 7 PM |
| Google rating | 4.9 from 59 Google reviews |
Trades
Each trade shows the evidence we matched it on.
- Solarmain tradeGoogle main category
Service area
Based in Fitchburg, MAView on map
Opening hours
| Day | Hours |
|---|---|
| Monday | 7 AM – 7 PMevening |
| Tuesday | 7 AM – 7 PMevening |
| Wednesday | 7 AM – 7 PMevening |
| Thursday | 7 AM – 7 PMevening |
| Friday | 7 AM – 7 PMevening |
| Saturday | Closed |
| Sunday | Closed |
- Open evenings (after 6 PM)
- Open Saturdays — no
- Open Sundays — no
Typical solar installation prices
| Job | Low | Typical | High |
|---|---|---|---|
| Solar panel installationPer system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.05 New England factor (2025 Cost vs. Value Report) | $28,990 | $32,790 | $35,670 |
Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.
Reviews
ContractorsRanked reviews
No ContractorsRanked reviews yet
4.9from 59 Google reviews
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Questions about Critical Mass Solar
How is Critical Mass Solar ranked in Fitchburg?
Critical Mass Solar is ranked #4 of 123 solar installers in Fitchburg by CR Score, with 57 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.
What are Critical Mass Solar’s hours?
Critical Mass Solar is open Monday to Friday. Its listed hours are Monday to Friday, 7 AM – 7 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.
What do Google reviews say about Critical Mass Solar?
Critical Mass Solar has a rating of 4.9 from 59 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.
How do I contact Critical Mass Solar?
Call Critical Mass Solar on (978) 272-1486. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.
Own Critical Mass Solar? Claim this profile.
Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.