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Installation & Replacement
Every House Eventually Needs More Than It Was Built With
A house built for a family in 1975 had a couple of circuits per room and a kitchen with a range and a refrigerator. Today the same house wants an induction cooktop, a second oven, a workshop in the garage, a hot tub on the patio, a home office with three monitors and a backyard casita for a parent or a renter. Each of those is an installation job: a new circuit from the panel, sized and protected correctly, run cleanly and permitted when the work calls for it.
Radiant’s licensed electricians do that work across Austin and the surrounding cities. Dedicated circuits for the appliances that deserve one. Sub-panels for detached garages, ADUs and shops. Whole-home surge protection at the panel, which matters here where spring thunderstorms and post-outage surges take out electronics every year. Wiring for kitchen and bath remodels, including the extra circuits modern kitchens require. Smoke and carbon monoxide alarms, bathroom exhaust fans, attic fans, landscape lighting transformers and the disconnects and circuits a new air conditioner or electric tankless water heater needs.
Before any of it, the electrician checks whether the panel has the capacity and the slots. If it does not, you hear that in the quote along with the options, not after the drywall is open. Every installation is priced in writing first, backed by the Home Comfort Guarantee, and eligible for financing when the project is a big one. For chargers and generators, see the dedicated EV charger and generator pages.
- Capacity checked first A load calculation before the quote, so the new circuit is not the one that pushes the panel over the edge.
- Permitted and inspected When the work requires a permit, we pull it and schedule the inspection. It protects you at resale as much as it does today.
- One written number Materials, labor, permit and patching in a quote honored for 72 hours, with no hidden fees.
Common Projects
What Austin Homeowners Are Adding
These come up every week. Most of them need their own circuit, and a few need a bigger panel.
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A kitchen remodel
Induction cooktops, wall ovens, a big microwave and countertop circuits. Modern kitchens need far more circuits than the old one had.
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A garage apartment or backyard casita
ADUs are everywhere in Austin now. A sub-panel fed from the main, with its own circuits for a mini-split, a kitchen and a bath.
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A hot tub, pool pump or sauna
Large 240-volt loads outdoors with strict GFCI and disconnect requirements. Not a place for improvising.
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A garage workshop
Table saws, compressors and a welder trip a shared garage circuit instantly. Dedicated 120 and 240-volt circuits fix it.
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Surge protection after a bad storm
Lost a TV, a router and the garage door opener to one strike. A panel-mounted surge protector is cheap next to that list.
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A new AC or heat pump
A properly sized breaker, a disconnect at the unit and sometimes a new circuit. We do it as part of the HVAC install.
What We Install
Installation Services
From a single new circuit to the wiring for a whole addition.
- Dedicated circuits Ranges, ovens, dryers, water heaters, window units, freezers, medical equipment and anything else that should not share.
- Sub-panels For detached garages, ADUs, workshops and additions, fed from the main panel with proper grounding at the far end.
- Whole-home surge protection A surge protective device at the panel that clamps spikes before they reach the appliances, electronics and HVAC controls.
- Remodel and addition wiring Kitchens, baths, home offices and new rooms, roughed in to code and finished with the devices and fixtures you chose.
- Smoke and CO alarms, exhaust fans Hardwired, interconnected alarms and properly vented bathroom and attic fans, on circuits that meet the rules.
- Appliance and equipment hookups Disconnects and circuits for AC condensers, heat pumps, tankless water heaters, pool equipment and hot tubs.
How It Works
How an Installation Project Runs
Plan it once, price it once, build it once.
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Describe the project
What you are adding, where it goes and when you need it. The electrician looks at the panel and the route while you talk.
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Design the circuits
Load calculation, breaker and wire sizing, GFCI and AFCI requirements, and whether a sub-panel or upgrade is part of it.
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Approve the written quote
Everything in one number, including the permit and any patching, honored for 72 hours.
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Install, inspect, label
Circuits run, devices set, breakers labeled, inspection passed and the site cleaned up before we leave.
Current Specials
Save on the work your home needs most.
Adding Something That Needs Real Power?
A licensed electrician will size it, permit it and price it in writing before any work starts.
What Our Customers Say
Don't just take our word for it — hear from our satisfied customers
★★★★★
Had a massive undetectable leak in a new home I just moved into... I was losing 1000+ gallons a day and was so worried about what was going to be the outcome. Then Radiant/ DAVID FARMER my saving grace, best plumber I've ever had, came to my rescue. It was a large job with doing all the leak detection and solving each problem but David was kind enough to teach me everything he was doing/what to look out for in the future to avoid issues later. It was an awful stressful situation that he made easy and fixed quickly. I think they are fairly priced and will work with budget constraints if needed. All I know is I know who my plumber is for life and I really appreciated all that Radiant and David did! UPDATE: used radiant for a AC repair and again they didn’t disappoint! April was my technician and she was AWESOME! So patient and kind and I learned a lot about my system that she showed me! Kudos again Radiant!!
★★★★★
We had another incredible experience with Radiant Plumbing & Air Conditioning that left us very impressed. Back in 2013, we hired this exact company to replace our old water heater, and the entire experience was absolutely outstanding. So, as soon as we realised it was time to replace our 2013 water heater, we didn’t hesitate to contact Radiant once more. Once more, Radiant and Christian, the technician, exceeded all expectations with their efforts. Christian is a true professional. We appreciated how Christian clearly explained all the different choices and worked hard to keep us near our budget limits. Our sincere thanks go to Christian and Radiant for their genuine support in helping us remain as close as possible within our financial limits. Christian was not only kind but also very respectful during his time at our house, and he did an outstanding job. Christian and the gentlemen who accompanied him performed their tasks excellently, demonstrating friendliness, kindness, and deep knowledge of their craft, which clearly marks them as true professionals. I want to express my gratitude to Radiant and also to Christian, thank you both!!
★★★★★
If you're in need of a new HVAC system because the one you got from the new home builder has broken down or is not working right, especially in this heat wave, Radiant can get you setup with a new and energy efficient system that keeps you cool and comfortable no matter the extreme temperature outside.
I highly recommend Radiant for cooling and heating. They are very friendly, knowledgeable and professional.
Their technician (Nathan B.) was outstanding and Breana the customer support manager provided stellar service and support.
They even have an annual warranty service program where they come out twice a year ahead of the winter months for heating system checkup along with system maintenance and then again in springtime to check the cooling ahead of the summer months for cooling system check and and any necessary maintenance to keep your system running efficiently and smoothly.
There warranty service is much cheaper than American HomeShield and does not require a copay or deductible. It's quite a bargain and it provides peace of mind.
Give Radiant a try and your heating and cooling worries will disappear. I absolutely recommend them with the highest rating available.
I highly recommend Radiant for cooling and heating. They are very friendly, knowledgeable and professional.
Their technician (Nathan B.) was outstanding and Breana the customer support manager provided stellar service and support.
They even have an annual warranty service program where they come out twice a year ahead of the winter months for heating system checkup along with system maintenance and then again in springtime to check the cooling ahead of the summer months for cooling system check and and any necessary maintenance to keep your system running efficiently and smoothly.
There warranty service is much cheaper than American HomeShield and does not require a copay or deductible. It's quite a bargain and it provides peace of mind.
Give Radiant a try and your heating and cooling worries will disappear. I absolutely recommend them with the highest rating available.
Maintenance Membership
Join the Care Club
Home maintenance for $9.99 a month.
Care Club members get two HVAC tune-ups and a plumbing safety inspection every year, priority scheduling, no dispatch fees — ever — and 5% off every repair.
- Priority scheduling
- Seasonal HVAC tune-ups
- Annual safety inspection
- Exclusive member discounts
- Free dispatch on repairs
- No long-term contracts
Electrical Installation Questions
Do you install dedicated circuits for appliances like induction ranges and hot tubs?
Yes, and those two are good examples of why a dedicated circuit matters. An induction range draws heavily and briefly, and it needs a 240-volt circuit sized to its nameplate, not the old range circuit that happens to be there. A hot tub is a large outdoor load with specific requirements for ground-fault protection and a disconnect within sight of the tub. Both are permitted work. We size the conductor and breaker to the equipment and the length of the run, install the disconnect where it is required, and make sure the panel has the capacity to carry the new load alongside the air conditioner in August.
Can you wire a garage apartment or backyard casita?
Yes. Accessory dwelling units are common across Austin now, and they are almost always fed by a sub-panel in the new structure, supplied by a feeder from the main panel. The sub-panel gets its own grounding and carries the circuits for the unit: a mini-split, kitchen counters and appliances, a bath with GFCI protection, lighting and general outlets. The first question is whether the main panel can supply the feeder, and on a 100-amp service the answer is often no, so a panel upgrade becomes part of the project. We work with your builder or handle the electrical scope directly, and we pull the permit.
Is whole-home surge protection worth it in Central Texas?
We think so. Spring and early summer thunderstorms bring lightning to the area every year, and the surges that come with grid switching and power restoration after outages are just as hard on electronics. A whole-home surge protective device mounts at the panel and clamps voltage spikes before they reach your circuits. It does not replace the power strip under your desk; it protects the things you cannot plug into one, like the air conditioner’s control board, the water heater’s electronics, the garage door opener and the built-in appliances. Compared to replacing a single control board, it is a modest one-time cost.
Will you install a fixture or device I bought myself?
Yes. Bring the fan, the chandelier, the charger or the smart switch and we will install it, with one condition: it has to be safe and listed for the use. If a customer-supplied device is damaged, not rated for the location, or asks for a circuit the house cannot provide, we will say so and suggest an alternative rather than install something we would not put in our own homes. Warranty on the device itself stays with the manufacturer, and our workmanship is covered by the Home Comfort Guarantee.
Do you pull permits for electrical installations in Austin?
When the work requires one, yes, and we schedule the inspection that follows. New circuits, sub-panels, panel changes and most equipment hookups are permitted work; swapping a like-for-like fixture or device generally is not. The permit is not paperwork for its own sake. It means an inspector confirms the work was done to code, which protects you now and again when you sell, because unpermitted electrical work is exactly what buyers’ inspectors look for. The permit cost is included in the written quote so there is nothing extra at the end.
*Offers cannot be combined with other promotions or applied to dispatch fees. No cash value. Must present offer at time of service. Call for details.
