Local pros
Local pros for big home purchases
Many of the products on this site are only half the job. A cold-climate heat pump, a standby generator, a 240V hot tub, a whole-house softener or a louvered pergola needs the right trade to install it, and often a permit. Here's who does what, what to ask and what it typically costs.
Trades
HVAC, heat pump and mini-split installers
Ductless mini-splits, ducted and cold-climate heat pumps. EPA 608 certification for refrigerant work; mechanical permit in most places.
Typical: $2,000–$4,000 for one ductless zone.
Licensed electricians
Standby generators and transfer switches, hot tub and sauna circuits, EV chargers and panel upgrades.
Typical: $800–$1,600 for a hot tub circuit.
Plumbers and water treatment pros
Whole-house filters, softeners, water heaters and gas lines for ranges and dryers.
Typical: $700–$3,000 for a water softener.
Appliance installers
Ranges, dishwashers, refrigerators, washers and dryers on existing hookups.
Typical: $150–$400 to install a gas range on an existing line.
Pergola and deck builders
Kit assembly, custom pergolas, decks and the footings or pads underneath.
Typical: $600–$1,500 labor to install a pergola kit.
Concrete contractors
Pads, slabs and footings for hot tubs, generators, heat pump condensers, pergolas and garage gyms.
Typical: $6–$12 per sq ft installed for a slab.
Landscapers and mower dealers
Mower sales, setup and service, lawn care and listing-ready yard work.
Typical: $150–$200 for a riding mower tune-up.
Real estate agents for sellers and flippers
Pricing, which upgrades to make before listing, and marketing.
Typical: 5.46% average total commission (2026 survey).
Cost ranges are national figures from the sources on each trade page; local prices vary.
Hire right once: The cheapest quote often leaves out the permit, the circuit or the footings. Compare quotes line by line for the same scope, and hire the licensed pro who explains how they sized the job.
Before you hire, check:
- License status on your state or local licensing board's website, plus liability insurance
- A written, itemized quote that names the permit and inspection
- Labor warranty terms and who registers the manufacturer's warranty
Which pro for which product
| Product | Who installs it | Permit usually needed? |
|---|---|---|
| Heat pump or contractor mini-split | HVAC contractor (EPA 608), often with an electrician | Yes, mechanical and often electrical |
| DIY quick-connect mini-split | You, plus an electrician for the circuit | Often electrical |
| Standby generator | Generator dealer or electrician, plus a gas fitter | Yes, electrical and gas |
| Portable or battery generator inlet | Electrician (transfer switch or interlock) | Usually electrical |
| 240V hot tub | Electrician; builder for a pad or deck | Usually electrical |
| Traditional sauna | Electrician for the 240V heater circuit | Usually electrical |
| Softener or whole-house filter | Plumber or water treatment specialist | Varies by local code |
| Gas or induction range | Appliance installer; plumber or electrician for new lines | For new gas or 240V lines |
| Gas dryer | Appliance installer; plumber for a new gas line | For new gas lines or vents |
| Pads and footings (hot tub, generator, heat pump, pergola, sauna, garage gym) | Concrete contractor | Often for footings and structures; pads vary |
| Pergola | Pergola or deck builder | Often, especially attached or roofed |
| Riding mower | Dealer for setup and service | No |
Permit rules are set locally. Your building department's website or a quick call confirms what applies at your address.
How to hire right once
- Get at least two or three written quotes for the same scope. List the model, the circuit or gas line, the permit, haul-away and any pad or footings so the quotes compare.
- Verify the license and insurance. Look the license up yourself on the state or local board's site, and ask for a certificate of insurance.
- Ask how they sized it. A Manual J for heat pumps, a load calculation for panels, a water test for softeners, wind and snow ratings for pergolas.
- Keep payments tied to progress. A deposit, then payments at milestones, with the balance after the inspection passes. Some states cap deposits on home improvement contracts.
- Keep the paperwork. Permits, inspection sign-offs, model and serial numbers and warranty registrations help with warranty claims and, later, when you sell.
Selling soon?
If you're preparing a house for sale, talk to a listing agent before you pick upgrades, and see big-ticket buys for house flips and pre-sale upgrades for what tends to pay back.
FAQ
Do I need a permit to install a mini-split or heat pump?
In most places, yes: a mechanical permit and often an electrical permit. The refrigerant work must be done by an EPA Section 608-certified technician.
Can an appliance installer run a new gas line?
Usually not. New gas piping is generally licensed plumbing or gas-fitting work that needs a permit; installers connect to an existing, capped line.
Do hot tubs need an electrician?
120V plug-and-play tubs plug into a GFCI-protected outlet. 240V tubs need a dedicated GFCI circuit and a disconnect within sight of the tub, installed by an electrician, usually with a permit.
How many quotes should I get?
Two or three written quotes for the same scope are usually enough to spot an outlier and see what each one includes.