STORM SEASON. IS YOUR POWER READY?
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Call 337-344-3920Lafayette · Youngsville · All of Acadiana
Gas Generator Installation
THE SHORT ANSWER
A standby generator is a gas job as much as an electrical one, because it only works if the fuel line can actually feed it under load. Hargrave’s sizes and installs the gas piping, sets the pad, runs the line, pressure tests it and coordinates the permit and the electrical hookup. In south Louisiana the units that fail during a hurricane are usually the ones fed by an undersized line.
Sized under load
Gas line, not guesswork
4.9 ★★★★★
1,100+ reviews
24/7
Emergency response

CREDENTIALED, NOT JUST CONFIDENT
Awards and certifications you can actually verify.
Every badge here is a third party vouching for us, not a slogan we wrote about ourselves.

Acadiana's Choice 1st Place Winner
1st place three years in a row (2024, 2025 and 2026), voted by the people who live here.

LICENSED LMNGF #9436 · LMP #5401 · INSURED
Certified by ASSE International for backflow prevention assembly testing, certification 68664.

Authorized Independent Provider
Authorized to take plumbing work through The Home Depot Home Services program.

Best of Acadiana, 2017
Voted a Best of Acadiana winner by Times of Acadiana readers in 2017.
Where are you in the process?
We install and service natural gas and propane standby generators for homes and businesses across Lafayette, Youngsville and Acadiana, including the pad, the gas piping, the pressure test, the permit and the tie-in.
You are shopping
- Lost power last storm
- Working from home now
- Medical equipment in the house
- Food loss or a flooded freezer
- Business cannot afford downtime
Sizing starts with what you want to keep running
You have the unit
- Generator delivered, needs a gas line
- Builder left a stub, not a line
- Propane tank needs plumbing
- Pad or slab not set
- Permit not pulled
We do the gas side and coordinate the rest
Yours will not run
- Starts, then shuts down under load
- Runs rough on natural gas
- Regulator freezing or hunting
- Never been tested since install
- Gas smell near the unit
Most of these are fuel delivery, not the engine
- ★★★★★
They did a great job and were a pleasure to work with.
Julie Christman - ★★★★★
John was AMAZING! So sweet, very knowledgeable. Give him a raise. He's STELLAR! 10 stars. Service side of plumbing is right up his alley.
Madison - ★★★★★
The experience was great! Mr. Colin came same day and effectively fixed my issue.
Christie Charles - ★★★★★
Jacob did an excellent job putting in a swimming pool drain line! It was a tough job hand digging around an existing natural gas line for approximately 60 feet! Thanks Jacob!!
Richard D. Reed - ★★★★★
Zack did a great job! He has done a few services for me and always does a good job and is very personable. Thank you!
Luci Campbell - ★★★★★
Colin (and the company as a whole) was great! He was knowledgeable and assured me throughout the repair.
Grant Delay - ★★★★★
Very hard working and polite.
Craig Little - ★★★★★
Call and scheduling process was very easy. They were able to be on site within 2 hours. Chance was very professional and courteous and provided me with an estimate before and fixed the issue same day.
Tammy Leger - ★★★★★
Delighted with the work, very satisfied, absolutely recommended.
Rosie’ Allain - ★★★★★
Very satisfied, great service
Lar D - ★★★★★
Johnny Johnson was amazing. He was very knowledgeable, professional and polite. I'll call Hargrave's plumbing for future needs and will request Johnny!
Tiffany Gullett - ★★★★★
Company is very responsive, sent technician to our home very promptly. Chance and Jerome were both polite and professional. They serviced our needs quickly!
Meagan - ★★★★★
Kayden was very courteous & thorough. He explained everything in detail & he made sure all was clean & working perfectly before he left. When we need work done in the future we would like him to come back.
C T - ★★★★★
Zach was great at showing and explaining what all was going to be done. Took time to ensure all 3 faults were good and no longer leaking.
Kristina Duhon - ★★★★★
Cordial, on-time, efficient, friendly. Great experience.
malcolm huval ii - ★★★★★
He helped us so much! Worked hard and got the job done in the heat
Alexis Marks - ★★★★★
AJ was excellent, he took time to take care of a difficult clog and a sink leak correctly. Great service and great attitude. Would definitely recommend.
Aaron Dufrane - ★★★★★
Jacob was wonderful!
Sherry Romero - ★★★★★
The two service men who came out were Kaleb and Kaden. Very professional, clean, courteous, and very personable.
June Ducote - ★★★★★
BEST SERVICE EVER!!! Very friendly and knowledgeable and did his job precise didn't let anything get in his way. Top notch service. Zack is the greatest asset to your company.
Renee Morales - ★★★★★
Mr. Johnny is a true professional.
Chase H - ★★★★★
Chance, very professional and knowledgeable. Worked very hard in the heat and didn't stop till he completed.
Shelly Willett - ★★★★★
Chance with Hargrave Plumbing did a great job on our repair. He was extremely professional.
Raylin Massey - ★★★★★
I had a list of plumbing jobs for my home. I called Hargraves plumbing and they were at my house the next day.
Mary Cunningham - ★★★★★
Excellent Service from Start to Finish!
Matthew Brown - ★★★★★
Very professional and hard-working guys! We had two new hot water heaters installed in our very hot attic within 24 hours of requesting a quote. Very reasonable prices and excellent service.
Stacey Mire - ★★★★★
Absolutely fantastic experience.
Farrell Ortego - ★★★★★
I have nothing but good things to say about my experience with Chance S. and the rest of his team at Hargrave's.
Chris Jackson - ★★★★★
Technician Johnny Johnson did an excellent job and left things better than he found them by improving all the lines in and out. Support staff at the shop were excellent to work with!
Alan Broussard - ★★★★★
Mr Johnny came to help us with a tub issue. He was professional and kind.
Chris Cormier - ★★★★★
A definite 5 star experience! Thank you Hargrave's Plumbing. Our technician Zach was a wonder!
Tess Lamb - ★★★★★
I'm so excited and pleased to write this review! My experience with Hargrave's Plumbing was amazing.
Christie Charles - ★★★★★
Thank you Hargrave's Plumbing and Kaleb for the excellent job to replace my 20 year old water heater.
Mark Guilbeau - ★★★★★
Excellent service! We needed a new water heater in our attic. The cost was fair and the owner gave me a discount for same-day install. Highly recommend and will use them again in the future!
Tamara Vincent - ★★★★★
Excellent service! The technicians Luke and Zach were thorough and clearly explained their findings regarding my clogged kitchen sink drain. They provided me with multiple repair options to fix the issue and described each solution, answering all of my questions so that I understood what the repairs entailed and was able to make an informed decision that fit within my budget. Their professionalism and expertise made me feel reassured and comfortable, top notch service and all repairs completed during the same visit. Thank you again Luke, Zach, and Hargrave’s team for taking such good care of me, you’re the best in town!
C N - ★★★★★
Such a wonderful plumbing experience! Fast, reliable and magnificent service! Collin and Chance took care of our delima with confidence and ease. Couldn’t be more pleased with their work and respect for our needs! Thanks Hargrave Plumbing!
Stefni Lotief - ★★★★★
Zack came to McAlister’s and he did a wonderful job! Highly recommend yall ask for him to do the plumbing no problems at all he definitely deserves a raise!!
Scooby Hebert - ★★★★★
Javon was wonderful to work with! He went above and beyond by explaining everything and finding the source of the problems! He provided quotes and advice on moving forward. We will definitely be working with Hargrave’s Plumbing again! Thank you so much!
Tori Thibodeaux - ★★★★★
Zack came out and checked everything. Then quoted cost and came back to the plant and did a quick clean job. Excellent service
Ethel Cantu
What a proper install includes
The gas side, done right
A generator draws more gas at once than anything else on the house. This is what we do so it still runs on hour 40 of an outage.
Load and fuel demand calculated for the specific unit, not a rule of thumb
Meter and existing line capacity checked, and upsized where the math says so
Regulator sized for the unit, including 2 pound systems where the run demands it
Pad or slab set level, with clearances to windows, vents and the meter per code
Line routed and supported, with sleeving and boring under drives where needed
Full pressure test and leak check before anything is fired
Permit pulled and inspection coordinated, electrical tie-in scheduled with your electrician
Unit run under load and the transfer tested with you standing there
We would rather test it in June than have you find out in September.
BOOK ONLINE
Priced in person before any work starts · licensed and insured.
Why generators matter here
Hurricane season is long
Multi-day outages are normal in Acadiana, and a generator is the difference between an inconvenience and a hotel bill with a freezer full of loss.
Heat is the real risk
Losing air conditioning in August is a health problem for older family members, not just a comfort problem.
Fuel delivery is where they fail
An undersized gas line or a marginal regulator will run a unit fine for ten minutes and drop it under sustained load. That is the part we get right.
How a generator install goes
- You book a site visitOnline or by phone, 24/7. We look at the meter, the panel location and the route.
- We size the fuel sideDemand under load against your meter and line capacity, so the number is real before you buy a unit.
- You see the price, then we startPriced in person, permit included in the plan. The price you approve is the price you pay. Financing is available.
- Set, tested, handed overPad, line, pressure test, inspection, then we run it under load and show you how to exercise it.
24/7 EMERGENCY · EVERY CALL ANSWERED
Generator down in an outage? That is a call we take.
The phone is answered at any hour. If your unit will not start or drops out under load during a storm, call and we will work the fuel side.
Call 337-344-3920 now →Brands we stock and install. Financing available on replacements. Fix it today, pay over time.
BOOK ONLINEGenerator questions we get every week in Lafayette and Youngsville
Do you do the electrical too?
We do the gas piping, the pad, the pressure test and the permit coordination, and we schedule the electrical tie-in with your electrician so the two halves land on the same day.
Will my gas line handle a generator?
That is the first thing we check. A standby unit asks for far more gas at once than a water heater and a range together. Plenty of houses need the line upsized or a different regulator, and we measure it before you commit.
Natural gas or propane?
If the street has gas, natural gas means no tank to refill during an outage. On propane we size the tank for the runtime you want, because a small tank is the other way a generator quits in a storm.
What does it cost?
It depends on the unit, the distance from the meter and whether the line or regulator has to change, which is why we price it in person. Financing is available.
Generator installs across Acadiana
Assurance Plan members go first.
SEE THE ASSURANCE PLAN →Annual water heater flush, priority scheduling, and two inspections a year.
LICENSED LMNGF #9436 · LMP #5401 · INSURED
3138 Johnston St. Lafayette, LA 70503 · 511 Shore Dr Ste 5, Youngsville, LA 70592
3138 Johnston St. Lafayette, LA 70503 · 511 Shore Dr Ste 5, Youngsville, LA 70592


