Yearly Maintenance Contracts
A licensed technician inspects your complete system every 4 months (every 3 in Harris County), cleans filters, sets timers, checks sludge and floats, and files the county report.
Learn more →
Montgomery County, Texas · Family owned
Aerobic septic,
Aerobic septic,
kept running.
Maintenance contracts, same-visit repairs and home-buyer inspections for aerobic septic systems across Montgomery County and our neighbors in Harris, Waller and Grimes counties.
New to aerobic septic?Learn how your system works and what those lights mean.Read Septic 101 →
95%of needed parts carried on our trucks
3–4×inspections a year, matched to your county
4counties served from Montgomery
1 daysame-day or next-day service, schedule permitting
What we do
Everything your aerobic system needs between installation and replacement
One licensed crew for the inspections Texas requires, the repairs that come up, and the inspection you need before you buy.
Aerobic Septic Repairs
Air compressors, water pumps, spray heads and lines, control panels, timers, risers and lids. Red or yellow light on? Call us.
Learn more →Home Buyer Inspections
Buying a home with an aerobic system? We pull the county installation drawing and check every component before you close.
Learn more →Brands we service, and more:
AquaKlearAqua SafeCajun AireClearstreamDelta WhitewaterHootHydro ActionPro FloSouthern
Why homeowners stay with Greywater
A local crew that shows up, fixes it, and writes it down.
Licensed technicians
Every inspection is done by a licensed Greywater technician in a labeled work shirt who knocks on your front door when they arrive.
Stocked trucks
Compressors, pumps, spray heads, timers and photo eyes ride with us. No waiting weeks for parts.
Clear paperwork
A written report after every visit, filed with the county on time, and every visit logged on the maintenance tag at your panel.
Family owned
We're based in Montgomery, Texas. The people who answer the phone run the business.
How a maintenance visit works
What to expect every time we come out
- We knock first.Your technician is in a Greywater work shirt and checks in at the front door.
- Complete inspection.We clean the filters, set the timers, check sludge levels and floats, and check the control panel, spray heads, air pump, chlorinator and alarms.
- Repairs only with your OK.If something needs fixing, we explain it and wait for your approval. Our trucks are stocked, so once you approve, most repairs can be done that day.
- Tag and report.We log the visit on the maintenance tag at your panel and leave a report listing what we checked and any repairs needed.
Rooted in Montgomery County
We know the ground your system sits in
Piney woods, lake lots, creek bottoms and acreage off the farm-to-market roads. Each one is hard on an aerobic system in its own way.
W.G. Jones State Forest
Piney woods
From the state forest on FM 1488 up to Sam Houston National Forest, pine straw piles onto lids and jams spray heads. We clear it every visit.
Lake Conroe
Lake lots
Around Montgomery, Willis and Walden, homes sit close to the water. A stocked chlorinator and well-placed spray heads matter more here.
Spring Creek
The county line
Spring Creek splits Montgomery from Harris County. North of it you need three inspections a year; south of it, four. We set your contract to match.
FM 1488 · FM 1774
Acreage country
Horse property around Magnolia means long spray lines and more heads. Tractors and mowers break them; we carry the parts to fix them.
Where we work
Proudly serving north and northwest Houston
From our home base in Montgomery we cover Montgomery, Harris, Waller and Grimes counties. Don't see your town? Call us. If you're near any of these, we likely cover you.
Montgomery County
EVERY 4 MONTHSGrimes County
EVERY 4 MONTHS- Plantersville
- Todd Mission
- Navasota
- Richards
1 freemaintenance visit
Refer a neighbor, skip a bill
Have the person you refer mention your name. If they sign a maintenance contract with us, you get one free maintenance on next year's contract.
What customers say
Read our reviews
See what homeowners around Tomball, Magnolia and Conroe say about working with us.
Red light on? Contract up for renewal?
Call Greywater and talk to the people who'll actually be on your property. Monday to Friday, 8 to 5, usually same day or next day.