contractors.fyi
Sign in

Sandbox Solar

Solar installer working in Boulder.

  • Boulder publishes no contractor license list we can check

68 jobs on Boulder permits, 2022 to 2026: 57 solar installations, 7 EV charger installations, 4 heat pump installations. 9th most solar system permits of 68 contractors in Boulder.

Get a quote from Sandbox Solar

What the public records show

From the city's permits, one question at a time.

QuestionRecords showMark
Licensed?Boulder publishes no contractor license list we can checkThat says nothing about this business either way.Ask them
Jobs on record68 jobs on Boulder permits, 2022 to 2026: 57 solar installations, 7 EV charger installations, 4 heat pump installations9th most solar system permits of 68 contractors in Boulder. That counts jobs, not quality.Our Boulder permit records cover September 2021 to September 2026.Of their 57 solar system permits, 14 mention a battery.

Records: City of Boulder permits.

Cost and timing

Permit value (not a price)

Their typical permit lists $16,421 (half list more, half less)

That is the figure written on the permit form, which can be far from what you pay. What solar system jobs cost in Boulder.

Get 2 or 3 written quotes.

Track record

30 jobs in the last 12 months, down from 35 the year before

Q3 2022: 1 jobQ1 2023: 1 jobQ2 2024: 1 jobQ4 2024: 2 jobsQ1 2025: 5 jobsQ2 2025: 20 jobsQ3 2025: 10 jobsQ4 2025: 14 jobsQ1 2026: 8 jobsQ2 2026: 4 jobsQ3 2026: 2 jobsBusiest: 20 jobs2023202420252026
Each bar is 3 months of permits. The tallest is 20 jobs, April to June 2025. Across Boulder, all contractors together had 36% more solar system jobs in the last 12 months than in the 12 months before.

Where they work most

  • 8030421 jobs
  • 8030215 jobs
  • 8030114 jobs
  • 8030512 jobs
  • 803036 jobs

Jobs by kind of work

Latest jobs

Permit values are what the contractor wrote on the permit form, not what the owner paid.

DateWorkZIPOn the permit form
Jul 20, 2026Heat pumpReplacing existing 90% gas furnace with 80K duel fuel, 2 ton, heat pump80304$19,633
Jul 16, 2026Solar, 10.66 kWInstall 26 Maxeon 410W solar panels (10.66kW)80304$42,888
Jun 26, 2026Heat pumpReplacing existing furnace and AC with new 4 ton, 100K BTU, heat pump system80304$13,682
Jun 2, 2026SolarInstall a new 13.5 kWh energy storage system utilizing (1) TESLA POWERWALL 3 with (1) TESLA GATEWAY…80301$12,647
Apr 29, 2026SolarNo details on the permit80305$10,284
Apr 29, 2026SolarNo details on the permit80303$138,900
Mar 25, 2026Solar, 11.07 kWInstall 27 Mission Solar 410W panels (11.07kW) + 27IQ8AC series microinverters with 21 panels on…80302$23,496
Mar 18, 2026SolarBattery SOLAR80301$10,630
Feb 23, 2026Solar, 7.98 kWInstall grid-tied roof mounted (flush) 7.98kW PV solar system consisting of (19) 420W modules with…80303$23,810
Feb 6, 2026Solar, 7.14 kW*5/15/26 Revision - Removed ConnectDER Meter Collar Adapter, Added (N) 40A PV breaker, and PV AC…80301$13,545
Feb 6, 2026EV charger, 7.14 kW*5/15/26 Revision - Removed ConnectDER Meter Collar Adapter, Added (N) 40A PV breaker, and PV AC…80301$13,545
Jan 30, 2026Solar, 6.3 kW80301$11,036
Jan 20, 2026Heat pumpReplace 18seer, 3 zone heat pump with 3 head units80302$14,153
Jan 13, 2026Solar, 9.02 kWInstall a 9.02kW grid tied, flush roof mounted PV system using (22) 410W modules and micro…80301$13,769
Dec 19, 2025SolarInstall a enphase energy IQBATTERY-10C-1P-NA for whole home backup, move existing overhead…80302$15,356
Dec 12, 2025Solar, 10.5 kWInstall a 10.5kW grid tied, flush roof mounted PV system80304$19,440
Dec 9, 2025Solar, 7.38 kW80301$11,719
Dec 2, 2025Solar, 3.28 kW80304$9,493
Nov 26, 2025Solar, 6.15 kWInstall a 6.15kW grid-tied, flush roof mounted solar PV system, utilizing (15) 410w modules and…80302$14,039
Nov 26, 2025Solar, 5.04 kW80301$11,633
Nov 13, 2025SolarNo details on the permit80302$14,348
Nov 3, 2025SolarInstall a 11.48DCkW solar PV system, utilizing 28 410w modules80302$23,387
Oct 30, 2025Solar, 4.92 kW80302$19,316
Oct 30, 2025EV charger, 4.92 kW80302$19,316
Oct 23, 2025Solar, 6.56 kWInstall a 6.56kW grid tied, flush roof mounted PV system and Tesla Powerwall battery backup system80304$31,947
Oct 14, 2025Solar, 6.3 kWInstall a 6.3kW grid tied flush roof mounted PV system using all black panels and discrete conduit80302$14,479
Oct 3, 2025Heat pumpReplace [2] residential Gas/Electric ducted mechanical systems with Dual Fuel Heat Pump systems80302$18,000
Oct 1, 2025Solar, 7.56 kWInstall a 7.56kw grid tied, flush roof mounted solar PV system with battery backup80302$64,563
Sep 23, 2025Solar, 5.88 kW80304$31,904
Sep 23, 2025Solar, 5.88 kWInstall a 5.88kW Grid-Tied80302$15,410
Sep 5, 2025Solar, 12.6 kWInstall a total of 12.6kW of grid tied, flush roof mounted PV separated into (2) separate systems…80302$48,503
Aug 25, 2025Solar, 5.39 kW80305$12,922
Aug 25, 2025EV charger, 5.39 kW80305$12,922
Aug 25, 2025Solar, 11.34 kW80305$23,062
Aug 25, 2025EV charger, 11.34 kW80305$23,062
Jul 28, 2025Solar, 8.47 kWInstall an 8.47kW Grid-Tied80304$17,747
Jul 28, 2025EV charger, 8.47 kWInstall an 8.47kW Grid-Tied80304$17,747
Jul 3, 2025Solar, 6.55 kWInstall a 6.55kW grid tied, flush roof mounted pv system80304$37,204
Jun 13, 2025Solar, 10.08 kW80301$18,528
Jun 4, 2025Solar, 8.4 kWInstall an 8.4kW gird tied, flush roof mounted PV system using (2) 420W panels and Enphase…80301$16,421

What to ask before you hire

About Sandbox Solar

  • Ask for their license number and check it with the state.
  • Ask what the warranty covers and for how long, in writing.
  • Search their name on the Better Business Bureau site, and read their reviews.

Worth asking any solar installer

  • Can you show me proof of liability insurance and your bond?
  • What size system, which panels and inverter, and what will it make in a year?
  • Is my roof good for 25 more years, and what if it needs work first?
  • Who handles the permit and the utility's approval to turn it on?

Get a quote from Sandbox Solar

Five quick questions. We pass your request to Sandbox Solar.

You decide who to hire. Your details go only to the contractors you pick. How we use your details

1. Where is the job?

We match contractors who work near it. We never ask for your street address.

2. What do you need?

Pick any that fit.

3. When do you want to start?
4. What is your rough budget?

A range is fine. It helps contractors reply with a real number.

5. Where should we send it?

Your contact details go only to who you pick here.

Sent. We have your request.

We pass it to Sandbox Solar. Replies usually come within a few days.

Your job room keeps the request, your photos and every reply in one place, with an assistant that checks prices against city permits. Keep its link: it is the key to your job.

Open your job room

More solar installers near 80304 and 80302

See all 68 solar installers in Boulder, ranked by jobs

Run this business? Claim this page to get requests by email and reply to homeowners here.

Is this your business? Correct a record or add your warranty terms. It is free.

We check every change before it goes on the page, usually within a week, and may call to confirm you run the business.