TW Steam & Heating Services Ltd has been serving the North East of England for over 55 years. We're a medium-sized, BESA-accredited and Gas Safe registered mechanical and heating engineering company based on Rennys Lane, Durham — and we work across four distinct divisions: Domestic, Commercial Contracts, Industrial and Steel Fabrication.
From repairing a dripping tap or fitting a new bathroom, to maintaining industrial boiler plants and delivering large-scale public sector heating contracts, we bring the same experienced, qualified, affordable approach to every project we touch. Local authorities, health authorities, hospitals and universities trust us to get it done — properly.
From emergency callouts to scheduled installations — we turn up when we say we will. Quick quotes, prompt site visits, work delivered on time.
BESA member and Gas Safe registered. Every engineer on our team is properly accredited, time-served and trusted by Durham County Council, hospitals and universities.
Free quotations on heating and bathroom installations — no hidden fees, no surprise add-ons. Honest pricing for honest work, whether it's a domestic boiler or a hospital plant room.
From a leaky kitchen tap in Sunderland to a full boiler plant install at a Durham hospital — TW Steam handles every job under one roof, with the same accredited team.
01
Heating system installation, boiler servicing, complete bathroom design & fits, plumbing repairs and maintenance — for homeowners across the North East.
Explore Domestic Services
02
Bespoke steel fabrication in our Durham workshop. TIG, MIG and electrical arc welding for custom components, structures and one-off engineering jobs.
Discuss a Fabrication Job
03
Trusted by Durham County Council, NHS health authorities, hospitals and universities for large-scale heating, plumbing and mechanical contracts across the region.
Public Sector Capability
04
Industrial boiler plant installation and maintenance, mechanical services for industrial premises, and full building services engineering for factories and works.
Industrial Capability"TW Steam not only achieved the development project ahead of schedule but also provided free advice and follow up calls. They far exceeded our expectations, saving us valuable time and money — and as such they're now our go-to contractor."
Whatever the trade — heating, plumbing, mechanical, fabrication — chances are we cover it. If it's not listed here, give us a call to discuss it.
All domestic boilers — Gas Safe certified install, repair and annual servicing.
Full domestic central heating design, installation and upgrades across the North East.
Complete bathroom fits — design, plumbing, tiling and finishing. Free quotations.
From dripping taps to burst pipes — fast, qualified plumbing across Durham & Newcastle.
Installation and maintenance of industrial boiler plants and mechanical services.
Local authority, NHS, hospital and university heating & plumbing contracts.
Bespoke steel components and structures fabricated in our Durham workshop.
All standard welding methods — including MIG shielded gas, TIG and electrical arc.
Based at Unit 7-8b Rennys Lane in Durham, we cover domestic, commercial and industrial work across the wider region — and we travel further for larger contracts.
Trades come and go. We've been doing this in Durham and the North East for over 55 years. That kind of longevity isn't bought — it's built, one heating system and one happy client at a time.
Whether you're a homeowner with a leaky tap or a council planning a multi-million-pound refurbishment, you get the same accredited engineers, the same quality of work, and the same honest pricing.
We're members of the Building Engineering Services Association and registered with Gas Safe. That means our work meets industry standards every time — not just when someone's looking.
We give you a clear quote up front on heating and bathroom installations, and we stick to it. No hidden fees, no surprise add-ons at the end — just the price we agreed.
Domestic, Commercial Contracts, Industrial, Fabrication. Most firms specialise in one — we do all four under one roof, which means we can take on jobs other contractors have to subcontract out.
No obligation. Honest pricing. Same accredited team that Durham County Council, hospitals and universities trust across the North East.
Request Your Free QuoteCommon questions we get asked across our four service divisions. If your question isn't answered here, give us a call on 0191 384 1400.
Yes. TW Steam & Heating Services Ltd is fully Gas Safe registered, which means every member of our team that works on gas appliances — boilers, central heating, gas pipework — is legally certified to do so. We're also a BESA member (Building Engineering Services Association) for wider mechanical and heating engineering work.
Yes — we offer free quotations on all heating and bathroom installations across the North East. Get in touch by phone, email or the form on this page and we'll arrange a time to assess the job and give you a clear, no-obligation price.
Absolutely. Although we're trusted by Durham County Council, the NHS and universities for large-scale heating contracts, we're equally happy to fix a dripping tap, swap out a faulty boiler or fit a new bathroom for a homeowner. The same accredited team handles every job.
We carry out bespoke steel fabrication in-house at our Durham workshop. We offer electrical arc welding, TIG welding and MIG shielded gas welding, and we can fabricate custom components, brackets, frames and structures for industrial, commercial and one-off engineering jobs.
We're based at Unit 7-8b Rennys Lane, Durham DH1 2RS, and we cover domestic and commercial work across Durham, Newcastle, Sunderland, Gateshead, South Shields, Darlington and the wider North East. For industrial and contracts work, we'll travel further for the right job — get in touch and we'll discuss it.
TW Steam has been running since 1969 — over 55 years. In that time we've built up an experienced, qualified team and a reputation for affordable, reliable mechanical and heating engineering across the public, private and industrial sectors.
BESA-accredited and Gas Safe registered mechanical & heating engineers serving domestic, commercial, industrial and fabrication clients across Durham, Newcastle, Sunderland, Gateshead, South Shields and Darlington. Trusted by Durham County Council, hospitals and universities.