How many quotes should I get for a solar job in Somerville?

At least three. In the permit record the middle half of Somerville solar firms usually file between $29,900 and $37,825 a job, so two ordinary firms can sit 1.3 times apart and both be normal for Somerville. A third quote shows which one is the outlier. Filed values are what contractors wrote on permits, not quotes, so use them to judge the spread, not to price your own job.

What range is normal for solar jobs in Somerville?

Half of permits were filed between $19,100 and $45,800; 8 in 10 between $8,000 and $59,200. These are approximate, pooled from each firm's own spread.

How much do solar installers charge in Somerville?

The usual solar job is filed at $34,412; the middle half of firms usually file between $29,900 and $37,825. The 10 firms with the most permits in the last 12 months usually file $36,550, more than the usual. See every firm's usual job

Why is this different from the per-watt prices I see online?

Online prices are quoted per watt. A filed value is one number for the whole job on one permit, often many watts plus the work around them, and the Somerville file does not record how many each job covered, so we can't turn $34,412 into a price per watt.

Do bigger houses get bigger bills?

Not in the file: firms working on the upper third of homes by value usually file $31,625, the lower third $32,800.

Where does this data come from?

City of Somerville permit applications (issued permits only), read October 2026. How the records work in Somerville

Solar Panel Installation Cost in Somerville, MA (2026)

How much does solar panel installation cost in Somerville?

The usual solar job filed with Somerville is $34,412, from 324 priced permits, October 2023 through September 2026. The middle half of firms usually file between $29,900 and $37,825. Half of jobs were filed for less, half for more. A filed value is what the contractor wrote on the permit, not a quote or the final bill. A solar permit here usually takes 91 days from issue to final inspection. How long permits take →

What the spread looks like

Approximately, from each firm's own spread: every firm's range of filed values, weighted by its 324 priced permits across 77 firms, pooled into one. Half of Somerville solar permits were filed between $19,100 and $45,800.

Percentile	Filed value	Reads as
10th	$8,000	1 in 10 permits filed below
25th	$19,100	1 in 4 filed below
50th	$34,000	the middle permit
75th	$45,800	1 in 4 filed above
90th	$59,200	1 in 10 filed above

By home value

Firms split into thirds by the usual value of the homes they work on, with each third's usual filed value weighted by permits. Home values: City of Somerville FY2025 assessed values.

Firms working on	Usual home value	Usual filed value	Firms	Permits
Lower third	under $1,032,650	$32,800	25	74
Middle third	$1,032,650–$1,255,500	$36,550	25	187
Upper third	$1,258,500 and up	$31,625	26	62

Busiest firms and what they usually charge

Top 10 by permits in the last 12 months. Usual is each firm's middle filed value; middle half is the range its middle half of jobs were filed in; both are shown for firms with 5 or more priced permits. Busy is not the same as careful: pick what you value to build a list.

Firm	Permits	Last 12 mo	Usual	Middle half	Finished
Great Sky Solar	33	13	$38,875	$34,400–$50,600	83.7%
Revision Energy	22	10	$33,712	$19,125–$55,675	88.5%
The Boston Solar Company	21	9	$44,000	$37,400–$55,000	93.7%
Sunrun Installation Services	26	8	$33,612	$19,300–$38,437	56.2%
Old Glory Solar	8	8	$37,825	$31,712–$40,606	—
Critical Mass Solar	11	7	$36,550	$28,600–$52,687	5 of 5
Better Solar Solutions, LLC	10	7	$8,860	$6,284–$10,000	—
Newport Electric Construction	10	4	$44,150	$22,487–$53,500	7 of 7
Ecoloop Construction	10	3	$36,550	$11,950–$58,825	9 of 9
Worcester County Electrical	4	3	—	—	—

Why filed values run low or high

The 10 busiest firms usually file $36,550; the 68 firms with fewer than 10 permits usually file $32,250.
Firms working on the most expensive third of homes (usual home value $1,258,500 and up) usually file $31,625, against $32,800 for the least expensive third.
One permit type covers small and large jobs: 1 in 10 solar permits is filed under $8,000 and 1 in 10 over $59,200, 7 times as much.
100.0% of the 324 permits carry a value; the 0 without one are left out of every figure here.

Is your quote normal? Compare it with 324 filed values

Line your quote up against the file. In Somerville, 1 in 10 solar filed values sit under $8,000, the middle half between $19,100 and $45,800, and 1 in 10 over $59,200.

$76,900Above $59,200: higher than 9 in 10 filed values for this work in Somerville.
$34,412Right at the usual $34,412: in the middle of the file.
$5,600Below $8,000: lower than 9 in 10. Ask what the quote leaves out.

When to schedule solar installation in Somerville

Somerville files the fewest solar permits in May (59 against an average month of 100) and the most in September (167). If you can choose, ask for quotes in a quiet month. We have no prices by month, so this is about crews' schedules, not a discount. When each trade is busiest in Somerville →

How these numbers are made

Source: City of Somerville permit applications (issued permits only). The window is October 2023 through September 2026; a permit filed after that isn't here yet.

Usual is the middle permit: half were filed for less, half for more. Only permits with a filed value count; a value of $0 or none is left out.

The spread is approximate: we keep seven points of each firm's own range of filed values, not every permit, and pool them.

Nobody paid to be on this page and nobody can. How the records work in Somerville →

Guides for this trade

All guides →

Common questions

How many quotes should I get for a solar job in Somerville?At least three. In the permit record the middle half of Somerville solar firms usually file between $29,900 and $37,825 a job, so two ordinary firms can sit 1.3 times apart and both be normal for Somerville. A third quote shows which one is the outlier. Filed values are what contractors wrote on permits, not quotes, so use them to judge the spread, not to price your own job.
What range is normal for solar jobs in Somerville?Half of permits were filed between $19,100 and $45,800; 8 in 10 between $8,000 and $59,200. These are approximate, pooled from each firm's own spread.
How much do solar installers charge in Somerville?The usual solar job is filed at $34,412; the middle half of firms usually file between $29,900 and $37,825. The 10 firms with the most permits in the last 12 months usually file $36,550, more than the usual. See every firm's usual job →
Why is this different from the per-watt prices I see online?Online prices are quoted per watt. A filed value is one number for the whole job on one permit, often many watts plus the work around them, and the Somerville file does not record how many each job covered, so we can't turn $34,412 into a price per watt.
Do bigger houses get bigger bills?Not in the file: firms working on the upper third of homes by value usually file $31,625, the lower third $32,800.
Where does this data come from?City of Somerville permit applications (issued permits only), read October 2026. How the records work in Somerville →

Build your list of Somerville solar firms →Somerville permit statistics →How long permits take in Somerville →

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Other job costs in Somerville: Electrical · Remodel & Repair · Insulation & Weatherization · Roofing · HVAC & Sheet Metal · Windows, Doors & Siding · Deck & Porch · New Home · Addition

Solar Panel Installation Cost in Somerville, MA: what the permits say