How to Start a Solar Installation Company
By Seamless Home Team, Solar fulfillment operations · September 2, 2026
Quick answer
Starting a PV solar installation company means standing up a licensed construction business, not just learning to mount panels. The requirements fall into six groups: the licence to perform the work, which is set per state and often requires a qualifying individual with documented experience plus an exam; general liability and workers' compensation insurance, plus bonding where the state or jurisdiction requires it; crews, either employed or subcontracted, and the supervision to keep work code-compliant; access to equipment at a price that leaves margin, which for a new company without volume is the hardest single item; the engineering and permitting capability to produce submittable plan sets, in-house or bought in; and working capital, because materials and labour are paid before most funding structures pay you. The realistic constraint on a new installation company is rarely technical skill. It is cash-flow timing and the fixed cost of carrying licensed, insured crews through uneven deal flow.
Starting a PV solar installation company is a construction-business problem, not a solar problem.
The technical part — how an array goes on a roof, how a string is sized, how an inverter is commissioned — is learnable and well documented. The parts that decide whether the business survives are licensing, insurance, equipment pricing, crew economics and cash-flow timing, and none of them are about solar specifically. Founders who come from sales tend to underestimate all five; founders who come from the trades tend to underestimate the last two.
It is also worth confirming this is the business you want before you start it. The sales-only alternative reaches revenue far sooner and consumes almost none of the capital above, at the cost of controlling delivery — how to start a solar sales business sets out what that company actually needs instead.
This is about the installing path. If your intention is to close deals and let somebody else build them, that is a different business with a different cost structure — see how to start a solar sales business — and the choice between the two is worth making deliberately rather than by drift.
The six things you actually have to stand up
| # | Requirement | The realistic difficulty |
|---|---|---|
| 1 | Licence to perform the work | Fixed lead time, per state, often needs a qualifying individual |
| 2 | Insurance and bonding | Straightforward but gates permits and funder onboarding |
| 3 | Crews | Fixed overhead if employed; scheduling and vetting risk if subcontracted |
| 4 | Equipment access at a workable price | The hardest item. Volume-tiered pricing punishes new entrants |
| 5 | Engineering and permitting capability | Buy it or build it; either way you own the accountability |
| 6 | Working capital | The actual growth ceiling, and it is a timing problem |
1. Licensing is the fixed lead time before you can bill anything
PV solar installation is electrical work attached to a structure, so it generally falls under an electrical contractor licence, a general or specialty contractor licence, or in some states a dedicated solar classification.
The structural feature to plan around is the qualifying individual: most states require a named person with documented journeyman or supervisory experience who passes a trade and business-law exam, and the licence rests on that person's qualification. That means your licensing timeline is really a hiring or credentialing timeline, and it is measured in months rather than weeks.
Requirements do not transfer cleanly between states. A company building in three states generally satisfies three regimes, and reciprocity where it exists is partial. Verify current requirements with each state board directly — thresholds and classifications change, and a summary you found online is not a defence.
Two adjacent points worth settling early:
- The line between selling and performing the work is a licensing line, and it decides which regime applies to you at all. See whether you can sell solar without a contractor licence.
- Whoever holds the licence on the permit is the contractor of record and carries the code obligation for the work, regardless of who physically performed it.
2. Insurance and bonding gate your revenue, not just your risk
General liability and workers' compensation are the baseline, and they are usually required before a jurisdiction issues permits or a funding source completes onboarding. So they are not a back-office task to get to later; they sit on the critical path to your first invoice.
Beyond the baseline, expect to need commercial auto, and consider coverage for materials in transit and on site, since a stolen pallet of modules is a routine loss rather than an exotic one and materials delivery is a real exposure window. Some states and jurisdictions require a contractor bond, which is a financial guarantee rather than insurance.
The trap here is limits set by somebody else. Funding partners often impose coverage minimums above the state requirement, and discovering you are underinsured relative to a partner's requirement happens at onboarding — after you have bound a policy and while revenue waits. Confirm limits with the specific jurisdictions and funding sources you intend to work with first.
3. Crews: the decision is about your deal flow, not about cost per job
Employed crews cost more in fixed overhead and less per job. Subcontracted crews cost more per job and nearly nothing in a week with no work.
| Employ | Subcontract | |
|---|---|---|
| Cost when busy | Lower per job | Higher per job |
| Cost when quiet | Full | Near zero |
| Quality and scheduling control | Direct | Contractual |
| Best fit | Steady volume, tight geography | Lumpy volume, wide area |
The decision therefore turns on how steady and how concentrated your work is — not on which looks cheaper on a spreadsheet for a busy month.
The mistake to avoid is employing crews against a forecast rather than a backlog. Paying skilled people to wait is the fastest way to convert a good pipeline into a cash crisis, and crew attrition caused by inconsistent hours is expensive to reverse because the people who leave are the ones who had options.
4. Equipment pricing is the item most founders get wrong
This deserves bluntness, because the error is systematic.
Module and inverter pricing is volume-tiered. A new company buys at the worst available rate at exactly the moment it can least afford to, and distributors extend payment terms on the basis of trading history a new company does not have. Meanwhile the per-watt difference between low-volume and high-volume pricing looks trivial against the total project cost — and is a large fraction of the gross margin, which is the number that actually determines survival.
Three routes exist:
- Buy through a distributor at low-volume pricing and accept the thinner margin while you build history. Honest, slow, and safe.
- Join a dealer or fulfilment programme that purchases at aggregate volume and passes the pricing through, which is how a small company gets pricing it has not earned yet.
- Commit to volume you do not have in exchange for better terms. This is the route that ends companies, and it is attractive precisely when you are most optimistic.
5. Engineering: buy it or build it, but own the accountability
You need submittable plan sets and stamped structural justification where the jurisdiction requires it. You do not need to produce them in-house.
Most new installation companies buy design and permitting as a service, because employing or contracting a designer plus a professional engineer licensed in every state you build in requires volume most new entrants do not have. What matters in that decision is turnaround and rework: a service that returns sets slowly, or returns sets that draw corrections, costs you plan-review queue time — the part of the schedule you cannot compress.
Understanding what you are buying is worth the reading time: what is in a plan set, why applications get rejected, and which NEC edition applies in each jurisdiction, since that varies between neighbouring towns and changes the design.
Either way, the licensed contractor of record remains responsible for what is submitted. Buying the work does not outsource the accountability for it.
6. Working capital is the real growth ceiling
This is the one that surprises people who have run sales businesses.
On a typical residential project you pay for materials at or before delivery and crews weekly. Most funding structures release money against milestones — commonly a portion at install and the balance after inspection sign-off or permission to operate. See how M1/M2 milestone funding works.
The gap between installation and permission to operate is driven by jurisdiction and utility queues, which you do not control and cannot forecast tightly. So money you have already spent sits out for an uncertain period.
The consequence: your sustainable volume is set by how many simultaneous projects you can fund through that gap — not by how many you can sell or build. That is why procurement terms that remove the upfront material cost change a company's growth ceiling far more than a price discount of the same size, and why a stalled project is worse than a lost one: a project that stalls after the sale has consumed the capital without releasing the milestone.
What this looks like as a sequence
- Decide the role. Installing company, or sales organisation buying fulfilment. Do not drift into the more expensive one.
- Solve the qualifying individual and start the licence application. Everything else waits on this.
- Bind insurance to the limits your target jurisdictions and funders require, not the state minimum.
- Choose the crew model against your actual backlog, and revisit it rather than treating it as permanent.
- Secure equipment access before you sell volume you cannot supply at a margin.
- Model the cash gap, then set your simultaneous-project limit from it — and hold to it.
The bottom line
The technical skill is the least of it. Licensing sets your start date, insurance gates your permits and onboarding, equipment pricing sets your gross margin, crew model sets your break-even volume, and the cash gap between spending and milestone funding sets your ceiling.
Model those five for your own market and you will get a realistic picture, which is worth considerably more than an industry average profitability timeline.
Seamless Home exists for the parts of this list a new company struggles to stand up alone: engineering and permitting, materials at aggregate pricing through Direct Pay with no upfront working capital, and project management through to permission to operate, with installation performed by vetted partners engaged as its subcontractors. Coverage is confirmed per service area rather than promised as blanket availability. If you are working out what to build in-house and what to buy, get in touch.
Frequently asked questions
Do you need a licence to install solar panels?
In nearly all cases yes, and the specific licence depends on the state. PV solar installation is electrical work attached to a structure, so it typically falls under an electrical contractor licence, a general or specialty contractor licence, or in some states a dedicated solar contractor classification. Most states require a qualifying individual, meaning a named person with documented journeyman or supervisory experience who passes a trade and business-law examination, and the licence attaches to that person's qualification rather than to the company in the abstract. Requirements are not transferable between states, so a company operating in three states generally needs to satisfy three separate regimes, and reciprocity where it exists is partial. Verify current requirements with the state licensing board directly rather than relying on a summary, because thresholds and classifications change.
How much working capital does a solar installation company need?
More than most founders plan for, and the reason is timing rather than total cost. On a typical residential project you pay for materials at or before delivery and pay crews weekly, while most funding structures release money against milestones, commonly a portion at install and the balance after inspection sign-off or permission to operate. Since the gap between installation and permission to operate is driven by jurisdiction and utility queues rather than by anything you control, the money you have already spent sits out for a period you cannot forecast precisely. The practical implication is that a company's sustainable volume is set by how many simultaneous projects it can fund through that gap, not by how many it can sell or build. That is why procurement terms that remove the upfront material cost change the growth ceiling more than a price discount of the same size would.
Is it cheaper to employ crews or subcontract them?
Employed crews cost more in fixed overhead and less per job; subcontracted crews cost more per job and almost nothing when there is no work. Which is cheaper depends entirely on how steady your deal flow is. A company with reliable weekly volume in a tight geography generally does better employing, because utilisation is high and quality and scheduling are directly controllable. A company with lumpy volume or a wide service area usually does better subcontracting, because the alternative is paying skilled people to wait. The mistake to avoid is employing crews on the strength of a forecast rather than a backlog. Note also that subcontracting does not transfer the code-compliance obligation: the licensed contractor whose permit the work sits under remains responsible whoever was on the roof, so subcontract terms and vetting matter more in that model, not less.
What insurance does a solar installer need?
General liability and workers' compensation are the baseline, and both are usually required before a jurisdiction will issue permits or a funding source will onboard you. Beyond those, expect to need commercial auto for vehicles, and consider inland marine or equipment coverage for materials in transit and on site, since a stolen pallet of modules is a real and common loss. Some states or jurisdictions require a contractor bond, which is not insurance but a financial guarantee, and some funding partners impose their own coverage minimums that exceed the state requirement. Get the limits confirmed by the specific jurisdictions and funding sources you intend to work with before binding a policy, because being underinsured relative to a partner's requirement is discovered at onboarding and delays revenue.
How do you get equipment pricing as a new solar company?
This is the hardest item on the list and it is worth being blunt about. Module and inverter pricing is volume-tiered, so a new company buys at the worst rate precisely when it can least afford to, and distributors generally extend payment terms on the basis of trading history a new company does not have. The three routes are buying through a distributor at low-volume pricing and accepting the margin, joining a dealer or fulfilment programme that buys at aggregate volume and passes the pricing through, or committing to volume you do not yet have in exchange for better terms, which is the route that ends companies. Most new installation companies underestimate this, because the per-watt difference looks small next to the total project cost and is in fact a large fraction of the gross margin.
Do you need in-house engineering to install solar?
You need submittable plan sets and stamped structural justification where the jurisdiction requires it; you do not need to produce them yourself. Most new installation companies buy design and permitting as a service, because the alternative is employing or contracting a designer and a professional engineer licensed in each state you build in, and the volume required to justify that is substantial. The consideration that actually matters is turnaround and rework: a design service that returns sets slowly, or produces sets that draw corrections, costs you in plan-review queue time, which is the part of the schedule you cannot compress. Whichever way you go, the licensed contractor of record remains responsible for what is submitted, so buying the work does not mean outsourcing the accountability for it.
How long does it take to become profitable installing solar?
Nobody can honestly give you a number, and treat anyone who does with suspicion, because it turns on your licensing timeline, your cost of equipment, your crew model and how quickly your service area's jurisdictions move. What can be said usefully is which variables move the date. Licensing and insurance are a fixed lead time before you can bill anything, often measured in months. Equipment pricing sets your gross margin per job. Crew model sets your fixed overhead and therefore your break-even volume. And the local permitting and interconnection speed sets how fast completed work converts to cash. Model those four honestly and you will get a range for your own situation, which is more useful than an industry average.