Questions to Ask a Tesla Certified Installer Before Booking

Questions that identify the responsible company

Ask: What legal company will be on my contract? Who holds the electrical license? Will employees or subcontractors perform the work? Who pulls the permit? These questions prevent a common gap between a marketing brand and the contractor at the door. If a network connects the lead to a separate electrician, request that electrician’s information before the appointment is treated as final.

Follow with product accountability: What Tesla status do you hold for this product, and who completes commissioning? A salesperson may know the brand but not the technical process. Request a single point of contact who can coordinate sales, electrical questions, inspection corrections, and post-installation support even when different specialists participate.

Questions that expose design assumptions

Ask how the proposed circuit or backup system was sized. For a charger, request the circuit rating, commissioned current, load-calculation basis, and reason for any panel work. For storage, ask which loads are intended for backup, what operating assumptions influence runtime, and how existing solar is integrated. The answer should be tied to property data rather than a standard package.

Ask what has not yet been verified. Panel condition, concealed routes, grounding, utility service, structural mounting, internet signal, and local requirements can remain open. Good contractors identify unknowns and say how each will be resolved. A bid that presents every detail as certain after one photograph may be hiding future change orders.

Questions about permits, utilities, and other approvals

Ask whether a permit is expected, who pays each fee, who schedules the inspection, and who corrects work if the inspector requests a change. If the project involves a service upgrade, battery interconnection, shared property, or solar, ask which utility, HOA, landlord, or building approvals are required and who submits them.

Request a sequence rather than a promise date: assessment, design, application, equipment order, installation, inspection, utility approval, commissioning, and final handoff. Not every project includes every step. The sequence reveals dependencies that a simple “two-day install” statement misses.

Questions about price and change orders

Ask the bidder to separate equipment, ordinary installation labor, electrical upgrades, permits, trenching, restoration, monitoring devices, taxes, and optional work. Confirm whether the charger or battery is owner-supplied and who is responsible if it arrives damaged or is incompatible. Compare the same inclusions across bids.

Ask what event triggers a change order and who may approve it. Require photos or other documentation for concealed conditions when practical. The change order should state the added or removed work, price, schedule effect, and warranty effect before work continues. Emergency safety conditions can require a pause, but they do not justify an unexplained invoice.

Questions for commissioning and support

Ask for the specific final test and app handoff. A Wall Connector should be commissioned to the installed circuit and demonstrated. A Powerwall project should include an explanation of backup behavior and safe owner controls. Ask what configuration information will be delivered and whether required inspections must be complete before normal operation.

Finish with support boundaries: Who handles Tesla equipment faults, workmanship concerns, connectivity questions, inspection corrections, and damage? What response process applies? Keep manufacturer warranty documents and contractor workmanship terms separately. A confident installer will explain where one responsibility ends and the other begins.

Evaluate answers across bidders

The written answer should cover site assessment, design assumptions, load calculation, conductor and breaker work, mounting, networking, commissioning, permit fees, inspections, restoration and support. Request the model number, legal contracting name, permit responsibility and a list of conditions excluded or carried as allowances. The interview has not produced a comparable proposal if important answers remain outside the price and agreement.

Watch for vague licensing answers, verbal-only exclusions, guaranteed charging or backup outcomes without calculations and reluctance to document change orders. A responsible candidate can say which parts require a site assessment and provide a deadline for confirming them. Confidence is not a substitute for identifying assumptions that could alter design or price.

Require the final scope to deliver owner app access, operating guidance, inspection status, labeled equipment, setting records, warranty contacts and a problem-reporting process. Ask the installer to name the contact for a Tesla product issue and the contact for field workmanship. Those may be different, and the agreement should make the distinction easy to use.

Turn the interview into a project brief

Tell the bidder which Tesla product is selected, the desired outcome, proposed locations, existing solar or batteries, safe panel information and realistic expansion plans. Use ordinary photographs without opening covers or entering restricted rooms. Sending the same file to each candidate makes their technical questions and omissions easier to compare.

Ask who holds the applicable license, which Tesla product qualification is being represented, who supervises the crew, how subcontractors are disclosed and whose insurance applies. Verify the named entities in official records. Recheck status, service territory and equipment support after provider assignment so the interview evidence matches the company that will perform the job.

Write down the same questions for every bidder and attach the selected provider’s answers to the final agreement. You can request service with the product and address or review Tesla Wall Connector installation. Reconfirm the assigned company, product qualification, electrical credentials, availability and support responsibilities before scheduling.

Carry the interview into the agreement

Turn verbal answers into contract terms: current qualification, equipment model, circuit or backup design, permit responsibility, commissioning, inspection corrections and post-install support. An unanswered question should remain an open item with an owner and deadline, not disappear into the final price.

Compare the candidate’s answers with Tesla’s current resources for the named product and with the written proposal. The agreement should address the site assessment, design assumptions, load calculation, circuit work, mounting, networking, commissioning, permit fees, inspections, restoration and support. Ask for a citation or demonstration when a promised feature is not clear in the current installation material. The interview is useful only if its important answers survive into the contract and closeout requirements.

Make the interview concrete by naming the Tesla product, project goal, equipment and parking locations, existing solar or batteries, known panel information and credible expansion plans. Identify property approvals or another decision-maker at the outset. Share available records and safe photographs, but do not open electrical equipment or make measurements the responsible installer should perform.

Turn the strongest interview answers into handoff requirements. The customer should receive appropriate app access, operating guidance, inspection status, labeled equipment, recorded settings, separate warranty contacts and a defined path for reporting a problem. Putting those items in writing makes “complete” verifiable for this project without converting a qualification statement into a performance guarantee.

End the interview with a list of open answers, not verbal assumptions. Note any pending part number, load input, site measurement, approval, network check, permit fee or inspection responsibility. The proposal should identify who supplies the answer, when it is due and how a different result would affect the scope or price.

Ask for evidence that matches the answer

For each important promise, ask what document or demonstration will confirm it. Current product qualification may be supported through an official Tesla resource; electrical authority should be checked through the applicable licensing body; a permit has an application or record; a commissioned setting can appear in the closeout notes; and a working charger can be demonstrated with a vehicle. Evidence does not need to make the conversation adversarial. It keeps sales language, regulated responsibility and technical completion from blending together. If a subcontractor or separate design company is involved, the same exercise also reveals exactly which organization owns each result.

Ask how answers will be updated if the field assessment changes an assumption. A strong provider does not need to know every concealed condition during the interview, but it should have a written method for documenting the finding, presenting options and obtaining approval before added work. That process is as important as the first estimate because it shows how the team handles uncertainty after walls, equipment or service details can be inspected safely.

Frequently asked questions

What is the first question to ask?

Name the exact Tesla product and ask whether the provider can document current qualifications and service availability for that product at your address.

Should I ask about a load calculation?

Yes when a new continuous electrical load or backup design is involved. Ask what method and assumptions will be used and how the result affects the scope.

How should change orders be handled?

Require written authorization that states the reason, added or removed work, price effect and schedule effect before additional work proceeds.

What warranties should be discussed?

Separate the manufacturer’s equipment warranty from the installer’s workmanship terms and identify who handles each type of claim.

Can I use the lowest quote?

You can choose any provider, but compare identical scope, equipment, permits, commissioning, restoration and warranty terms before treating prices as comparable.

Sources

• Tesla — Find a Tesla Certified Installer
• Tesla — How to find a Certified Installer
• Tesla — Powerwall installation documents
• Tesla — Wall Connector support
• Tesla — Wall Connector installation resources
• Tesla — Wall Connector power management
• U.S. Department of Energy — Charging electric vehicles at home