EP Plumbing, Heating & Air is a family-owned, local team handling everything from brand-new gas line installation to leak detection and appliance hookups. Whether you're a homeowner near Roosevelt Park, a property manager downtown, or a builder framing a new place out toward Union Reservoir, we've got the experience to do it right, and to do it up to code.
Gas Line Installation
Good gas line installation in Longmont starts long before anyone picks up a tool. We plan the route, size the line correctly for your appliance loads, and choose materials, like CSST or black iron, that fit the job and meet code.
That sizing part matters more than most people realize. A line that's too small starves your appliances of proper gas flow, which shows up as weak burners or a furnace that struggles. We handle both indoor and outdoor runs, residential and commercial, new builds and renovation work. And no line goes into service until it passes a final pressure test and inspection.
We also install natural gas lines for appliances all over the area, new gas lines for a stove or range, and dedicated gas lines for a fire pit or grill so your backyard gets the setup you actually want.
Gas Line Repair and Leak Detection
Gas lines don't last forever. Fittings loosen, older pipe corrodes, and outdoor lines take a beating from winter weather here on the Front Range. When something's off, our gas line service covers it all: damaged piping, corroded lines, failing shut-off valves, low pressure, and underground concerns.
But first we find the problem. Gas leak detection means using proper equipment to pinpoint exactly where gas is escaping, not just guessing. Watch for these warning signs of a gas leak:
- A rotten-egg or sulfur smell
- Hissing near a line or appliance
- Dead or dying plants over an underground line
- A higher gas bill with no clear reason
If you smell gas, get everyone out of the building first, then call from a safe distance. Don't flip switches or light anything. Gas leak detection and repair is genuinely dangerous DIY territory, please leave it to licensed pros. After any repair, we re-test the system so you know it's tight and safe.

Gas Line Replacement and Upgrades
Sometimes a patch just isn't enough. Older Longmont homes often run on gas piping that's decades old, and once corrosion sets in, replacement is the honest answer. We'll tell you straight whether a repair will hold or whether an upgrade is the smarter long-term move.
Upgrades also come up when folks convert from electric to gas appliances, add square footage, or bring an older system up to current code. We size and route the new gas piping in Longmont properly, install sediment traps where needed to keep debris out of your appliances, and pressure test everything before we call it done.
Gas Appliance Hookups and Connections
A gas appliance is only as safe as its connection. We handle professional appliance hookups for:
- Gas stoves, cooktops, and ranges
- Ovens, furnaces, and boilers
- Water heaters and tankless water heaters
- Clothes dryers and garage heaters
- Fireplaces, fire pits, and outdoor grills
- Outdoor kitchens and pool heaters
Why hire a gas line plumber in Longmont instead of hooking it up yourself? A few reasons: proper gas flow, code compliance, leak prevention, and, this one surprises people, your manufacturer warranty. Plenty of appliance warranties require professional installation. A loose fitting on a DIY dryer hookup can void coverage and put your home at risk. Not worth it.

Why Choose EP Plumbing, Heating & Air Services in Longmont
- We're local and we know Longmont. Our team understands Front Range weather, sudden temperature drops, and the long heating seasons that put real stress on your system.
- We're licensed and insured. Every EP Plumbing, Heating & Air technician is licensed and insured in Colorado, background checked, and trained to respect your home. We leave every job site clean.
- We give honest advice. We won't push a replacement when a repair will do. You get straight answers and upfront pricing with free estimates before work begins.
- We respond fast. With 24/7 emergency service and same-day appointments when possible, we're here when you need us. When you call, you talk to a real professional who takes your problem seriously.