The local homeowner guide
Leaks, water heaters, clogged drains or a renovation. Compare 18 local and regional contacts, with advertised services and direct links to the businesses.
Researched September 18, 2026 · Alphabetical within each section · Not ranked
Company websites or the linked location profiles identify a Londonderry location or service base. Addresses are for identification; confirm before visiting.
Well pumps · Water treatment · Water heaters
71 Mammoth Road, Londonderry
Specializes in well pumps, water-pressure systems, filtration, softeners and tank or tankless water heaters.
The phone shown is from the current company website; older directory numbers differ. Ask whether your job fits its water-system focus.
Water heaters · Remodels · Gas piping · Well pumps
Londonderry · WorkHands-listed location; no street address published
Offers plumbing repairs, installations and maintenance, including tank and tankless water heaters, bathroom and kitchen remodeling, gas piping and well-pump repairs.
The company website lists weekday hours of 8 a.m.–5 p.m., with weekends closed. WorkHands identifies Londonderry as its location; confirm your address and appointment availability when calling.
Plumbing repairs · Drains & sewers · Water treatment · Sump pumps
39 Rockingham Road, Londonderry · also Hooksett
Residential and commercial plumbing with drain cleaning, sewer inspections and repairs, water treatment and sump-pump services.
Advertises 24/7 emergency service. Confirm dispatch timing and after-hours charges when calling.
Leaks · Water heaters · Drains · Remodels
Londonderry service base · no street address published
Offers leak repair, water-heater work, drain cleaning, pipe replacement and fixture installation, plus new-construction and remodel plumbing.
Advertises 24/7 emergency calls. The company publishes a Londonderry location; call for scheduling rather than planning a walk-in visit.
Two additional Londonderry listings supported by business directories. A current company website was not verified, so call to confirm operations, services and credentials.
Plumbing · Water heaters · Sump pumps · Remodels
Mailing address: PO Box 902, Londonderry
BBB lists a Londonderry mailing address; HomeAdvisor lists remodel plumbing, water-heater installation and sump-pump work.
Directory-backed listing. Current services, availability and emergency arrangements need direct confirmation; a PO box is not a customer office.
Plumbing · Ask about your specific project
Londonderry · directory address on Davis Drive
Local directories list Joseph Belanger as a plumbing contact in Londonderry.
No current company website was verified. Confirm business identity, the work accepted, availability and current credentials before booking.
Each company links to published Londonderry coverage. A town-specific service page does not mean the company has an office in Londonderry.
Plumbing · Water heaters · Heating
Hooksett-based · Londonderry service page
Publishes plumbing and related home-system services specifically for Londonderry residents and businesses.
Advertises 24/7 emergency service requests; confirm which technician and service can be dispatched to your address.
Plumbing repairs · Drains · Water filtration · Well pumps
71 Birch Street, Suite C, Derry
Offers plumbing repairs and installations, drain cleaning, filtration and well-pump work. Londonderry appears in its service area.
The company describes its roots in Derry Plumbing & Heating; listed once here under its current website branding. Advertises 24/7 emergency service.
Repairs · Drains & sewer lines · Water heaters · Remodels
Southern NH & Seacoast service area · office address not published
Lists Londonderry coverage for residential plumbing, fixture installation, pipe replacement, drain cleaning and tank or tankless water heaters.
Advertises 24/7 emergency response. Confirm arrival time and whether replacement equipment is available for your job.
Kitchen & bathroom plumbing · Water heaters · Gas piping
Southern NH & northern MA service area
Handles leaks, fixtures, showers, toilets and tank or tankless water heaters. Its contact page explicitly includes Londonderry.
Emergency services are advertised during business hours, not around the clock.
Repairs · Water heaters · Sump pumps · Well pumps
Regional provider · dedicated Londonderry service page
Offers kitchen and bathroom plumbing, pipe repairs, water heaters, filtration, softeners, sump pumps and well pumps.
The website advertises 24-hour live answering. Confirm actual technician availability and any emergency fee.
Residential plumbing · Repairs & installations
Manchester-area provider · lists Londonderry coverage
Publishes a Londonderry plumbing page and includes town in its service-area directory.
Describe your repair or installation when booking and ask for the diagnostic charge and earliest appointment.
Residential & commercial plumbing · Water heaters
18 Lomar Park, Pepperell, MA
A Massachusetts-based plumbing and heating company whose New Hampshire service list includes Londonderry.
Retail-store hours are not necessarily technician service hours. Confirm scheduling and any travel charge for Londonderry.
Leaks · Drains · Pipes · Water heaters
111 Franklin Street Extension, Derry · also Nashua
Serves Londonderry with residential plumbing repairs, including leaks, drain problems, broken pipes and water heaters.
Its plumbing-repair page describes emergency service for members. Ask about eligibility before relying on after-hours help.
Drain cleaning · Emergency plumbing · Water cleanup
Regional dispatch · Londonderry service page
The Londonderry page lists drain cleaning, plumbing emergencies and water-cleanup services.
Advertises 24/7 dispatch. Ask whether your problem needs plumbing, drain work, restoration or a combination, and how each will be charged.
Plumbing · Drains · Septic · Pipe relining
Regional NH provider · dedicated Londonderry service page
Lists plumbing, drain and septic services for Londonderry homes and businesses, including trenchless pipe relining.
For a sewer or septic issue, explain which system your home uses and ask what inspection or specialist equipment is needed.
Leaks & fixtures · Water heaters · Sump pumps · Well tanks
Greater Nashua service area · explicitly includes Londonderry
Residential services include fixture repairs, toilets, faucets, shower valves, sump and ejector pumps, well tanks and water-heater replacement.
Its website describes a Greater Nashua service area; listed here as a company serving town rather than a confirmed Londonderry office.
Leaks · Water heaters · Repiping · Remodels
13 Donovan Drive, Derry
Explicitly serves Londonderry with water heaters, leak repairs, toilets, fixtures, gas piping, sewer and water lines, and remodel plumbing.
Emergency repairs are listed, but confirm after-hours availability directly; published regular hours are weekdays.
These starting points reflect advertised services, not preferred providers. More options appear in the directory above.
Describe the fixture, the symptoms and whether the problem is ongoing. Ask if a diagnostic fee is credited toward the repair.
Tom’s · Donovan · White Birch · Steve Martin
Share the heater’s fuel type and model, or explain whether you use a private well. For treatment, ask which water-test results the proposed system addresses.
Say whether one fixture or several are affected and whether your home uses sewer or septic. Ask whether the quote includes a camera inspection or only clearing the blockage.
Southern NH · Roto-Rooter · Rowell’s · CSK
Southern NH, Tom’s, Al Terry, American Home Services, CSK and Roto-Rooter advertise around-the-clock emergency options. Call to confirm dispatch time, service coverage and charges. Heritage advertises 24-hour live answering; Paul the Plumber describes member emergency service; Donovan limits emergency service to business hours. Online forms are not confirmation that help is on the way.
Have your address, photos, equipment model and a short description of the problem ready. Mention well versus public water, sewer versus septic, and any recent repairs.
Ask for diagnostic and travel fees, after-hours rates, labor and parts, disposal, permit charges, warranty terms and exclusions. Agree on how additional work will be approved.
Request the responsible plumber’s name, applicable NH license details and current insurance documentation. For gas work, ask about the relevant gas-fitting credentials too.
Londonderry’s permit page includes plumbing, gas/mechanical, septic and well permits. Ask the Building Department which apply to your project and agree who will obtain permits and arrange inspections.
Londonderry permit guidance ↗ · 603-432-1100, ext. 115
Use New Hampshire’s licensing resources to check credentials rather than relying on a badge or a directory’s business name: OPLC license-verification instructions ↗.
Reviewed September 18, 2026 using company service pages, contact pages and business directories. Links beside each listing support its contact, location or service information. Local businesses with company websites and sourced locations, additional directory-backed local contacts and regional service providers are separated to make the evidence clear.
We have not called the companies, checked individual license records or verified insurance, workmanship, pricing or appointment availability. Services and emergency claims are attributed to the linked sources. A listing is not an endorsement, credential verification or promise of immediate service. This is a broad researched guide, not a guarantee that every operator has been found.
We use current company contact information where it differs from older directories. Paul the Plumber is listed under its published Derry office rather than an older Londonderry listing. American Home Services identifies its connection to Derry Plumbing & Heating, so those names are not counted as two independent choices. General location pages without a clear business identity are excluded.