Standard Installation
$250 - $450
Per Lid Installed (Depends on Depth)
We bring the risers, dig the hole, seal the pipe, and
screw it shut. You never lift a shovel again. Most tanks need 2 lids — ask about our dual-riser discount.
Get a Quote (509) 970-9118
⭐ 5.0 Rating — Riser Installation Reviews
★★★★★
"Best money I've ever spent on the house. They installed risers on both lids and
pumped the tank the same visit. Now when it's time for a pump-out, they just pull up, pop the lid, and
they're done in 20 minutes. No more digging, no more guessing."
— Verified Google Review
★★★★★
"Previous company charged me $150 just to dig up my lids every time. After
two pump-outs I'd already spent more than the risers cost. Should have done this years ago. The green
lids are completely invisible in the lawn."
— Verified Google Review
Septic Tank Riser Installation in Spokane, WA
If you're paying someone to dig up your septic tank lids every time you need a
pump-out, you're throwing money away. A septic tank riser
is a green PVC pipe extension that brings your buried lids to ground level — permanently. Once installed,
you never dig again. Your pumper shows up, pops the lid, pumps the tank, and leaves. No shovels, no
backhoe, no torn-up yard.
Spokane Septic Services installs risers on concrete, fiberglass, and poly tanks across all of Spokane County.
Each riser is sealed with butyl rope for a watertight connection that prevents rainwater and
groundwater from entering your tank and overloading your drainfield. The heavy-duty green PVC lids include
stainless steel safety screws so children and pets can't open them.
Why Risers Pay for Themselves
Most septic pumping companies charge $50-$200 per visit just to locate and dig up your lids.
If you pump every 3 years, that's $100-$600 in digging fees over a decade — often more than the
risers cost. A one-time riser installation eliminates that fee permanently.
Risers also provide emergency access. When your system backs up at 2 AM and you need an
emergency pump-out, the last thing you want is a crew trying to find and
dig up your tank in the dark. With risers, the pumper connects in minutes — saving time, money, and your
carpets.
What's Included in Every Installation
Every riser installation includes: adapter ring (fits your existing tank opening),
green PVC riser sections (cut to exact depth), butyl rope seal (watertight),
heavy-duty green lid with stainless steel safety screws, professional digging and backfill,
and leveling flush with your lawn. We also pair risers with
digital tank locating and pumping for a complete one-visit package.
Septic Riser FAQ
How much does septic riser installation cost in Spokane?
Riser installation typically costs $250 to $450 per lid, depending on depth and soil conditions. Most
tanks have 2 lids (inlet and outlet), so a full dual-riser install runs $500 to $900 total. We always
quote the exact price before starting work.
Are septic risers safe for kids?
Yes. We install heavy-duty green PVC lids with stainless steel safety screws that require a specific
tool to open. A child cannot remove the lid by hand. The lids are also rated for foot traffic and
light equipment.
Can I mow over septic tank risers?
Yes. We install risers flush with the grass surface so your mower glides right over the top. The green
PVC color blends with your lawn. Most homeowners can't spot them from 10 feet away.
Do I need one riser or two?
We recommend risers on both the inlet (solids) and outlet (liquid) lids for full access. This allows
complete
pumping, baffle inspection, and filter cleaning without
digging. If budget is a concern, start with the inlet lid — that's where the pump truck connects.
Will a riser leak groundwater into my tank?
No. We seal the riser to the tank with butyl rope — a waterproof adhesive compound used in commercial
plumbing. The connection is watertight. The lid also seals against the rim, preventing rainwater and
groundwater from overloading your drainfield.
Can you install risers on any type of septic tank?
Yes. We install risers on concrete, fiberglass, and poly tanks. The adapter ring accommodates different
tank brands and lid sizes. If your existing lids are cracked, we replace them as part of the installation.
Can you install risers and pump the tank in the same visit?
Absolutely — this is our most popular package. We
locate the tank,
dig to the lids, install risers on both openings, then
pump the tank
through the new risers. One visit handles everything.
How long does riser installation take?
A typical dual-riser installation takes about 45 minutes to 1 hour after the lids are uncovered. If we
need to locate and dig to the lids first, add 30 to 60 minutes depending on depth. Most jobs finish
in under 2 hours total.
