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About our business
Gas Safe Registered Engineers | 24/7 Emergency Plumbing & Heating | Property Refurbishment | Serving London & Greater London
Onsite Contractors And Plumbing Ltd, your trusted partner for plumbing, heating, and property refurbishment in London and Greater London. With over 10 years of experience, we are a locally owned and operated business dedicated to delivering fast, reliable, and high-quality solutions for homeowners, landlords, and businesses.
Our reputation is built on trust, over 70% of our work comes from referrals. We pride ourselves on transparent pricing, rapid response times, and workmanship that stands the test of time. Whether you are facing an urgent plumbing emergency or planning a full home renovation, our Gas Safe registered engineers are ready to help.
Our Core Services:
We offer a complete range of services to keep your property running smoothly:
* Plumbing & Heating: 24/7 emergency repairs, leak detection, and pipe repairs.
* Boiler Services: New boiler installations, annual servicing, and repairs for all makes and models.
* Expert Heating Solutions: Power flushing, underfloor heating, and "No-Drain" radiator replacements (cleaner, faster swaps without draining the system).
* Gas Safety: Certified inspections and Gas Safety Certificates (CP12) for landlords.
* Air Conditioning: Expert installation, maintenance, and repair to keep you cool year-round.
* Property Refurbishment: Complete bathroom and kitchen refurbishments, house renovations, and extensions.
Areas We Cover:
We proudly serve the entire London and Greater London area. Our engineers are strategically based across North, South, East, and West London to ensure rapid attendance.
* North London: Enfield, Wood Green, Barnet, Finchley, Islington, Camden, Haringey.
* West London: Ealing, Notting Hill, Richmond, Chelsea, Kensington, Westminster.
* East London: Hackney, Newham, Redbridge, Bexley, Greenwich.
* South London: Wandsworth, Bromley, Croydon, and surrounding boroughs.
Contact Us:
Need an emergency plumber or a quote for your next project? We are available 24/7.
24/7 Hotline: +44 7415 299943
Our reputation is built on trust, over 70% of our work comes from referrals. We pride ourselves on transparent pricing, rapid response times, and workmanship that stands the test of time. Whether you are facing an urgent plumbing emergency or planning a full home renovation, our Gas Safe registered engineers are ready to help.
Our Core Services:
We offer a complete range of services to keep your property running smoothly:
* Plumbing & Heating: 24/7 emergency repairs, leak detection, and pipe repairs.
* Boiler Services: New boiler installations, annual servicing, and repairs for all makes and models.
* Expert Heating Solutions: Power flushing, underfloor heating, and "No-Drain" radiator replacements (cleaner, faster swaps without draining the system).
* Gas Safety: Certified inspections and Gas Safety Certificates (CP12) for landlords.
* Air Conditioning: Expert installation, maintenance, and repair to keep you cool year-round.
* Property Refurbishment: Complete bathroom and kitchen refurbishments, house renovations, and extensions.
Areas We Cover:
We proudly serve the entire London and Greater London area. Our engineers are strategically based across North, South, East, and West London to ensure rapid attendance.
* North London: Enfield, Wood Green, Barnet, Finchley, Islington, Camden, Haringey.
* West London: Ealing, Notting Hill, Richmond, Chelsea, Kensington, Westminster.
* East London: Hackney, Newham, Redbridge, Bexley, Greenwich.
* South London: Wandsworth, Bromley, Croydon, and surrounding boroughs.
Contact Us:
Need an emergency plumber or a quote for your next project? We are available 24/7.
24/7 Hotline: +44 7415 299943
Operating hours
We're available 24/7
Latest Google reviews
4.9
312 reviews
Suzi James
6 Months ago
We desperately needed a reliable and professional plumber to attend to a leak in a flat where the flat below was suffering damage in their bathroom.
A quick search through Google for top rated plumbers highlighted Onsite Contractors & Plumbing. From the initial call taken by Armand, to dealings with Claudia for bookings and billing, and to Ady for the actual work, it has been a positive experience. The cause of the leakage required investigation behind tiled areas. The cause was clearly indicated and the remedy explained, as well as identification of a broken valve in a separate cistern - also behind tiles. All work was carried out efficiently and effectively. Ady covered his shoes to keep from spreading dirty footprints, and he tidied and cleaned up the work areas without any damage to surrounding tile. Tests showed the leak was fixed, and I’m confident it will stay that way.
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Clementina Ugah
5 Months ago
It was a pleasure to have onsite contractors and plumbing ltd to do some works for me. I had a blocked sink on the 22/12/2025 due to the connecting pipes to the washing machine for the waste water was blocked. I spoke to the administrator Claudia who was very accommodating and understanding. She quickly got the plumber to come out the next day. I was apprehensive at first as I’ve been stung in the past by dodgy contractors. Claudia reassured me and booked me in with Armand who was knowledgeable and told us straight away what the problem was. He did a temporary fix and said he would be back in a couple of days to fix it. He sent an engineer and he bought new pipes to install under the sink. The work was done to a high standard and everything intact. Their prices is reasonable even their call out charge is very fair. They send you out your invoice and receipts. I hope to use them again. Thank you for your service.
Clementina
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Shifu Yan Xiu
4 Months ago
Have used onsite contractors for several plumbing issues and have always had the problems fixed quickly to a high standard. Claudia is the first point of contact and always very responsive and helpful. We booked with them in couple of weeks for a boiler installation and will continue to call them for future issues. Highly recommend.
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Ravi Jackson
5 Months ago
Highly recommend them. Our boiler stopped working. I engaged Onsite Contractors and my experience with them was excellent. They were very responsive, usually replying within minutes of my message. Armand helpfully explained the different options and he and his colleague carried out the work fitting a new boiler very promptly (the very next day) and efficiently (completed within half a day). Everything was quoted up front so I knew what I was paying.
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Soraya Shaheem
5 Months ago
Eddie came and sorted out a leak for us. He was really polite and considerate and finished the job to a really high standard.
The cost of the job was decent and I wasn't charged a higher price because I am female! I would definately reuse them and recommend this company.
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Insurances & Qualifications
- I have all the necessary insurances legally required to perform my service
- I have all the necessary qualifications legally required to perform my service
Services provided
At Onsite Contractors And Plumbing Ltd, we take the stress out of property maintenance. With over 10 years of experience, we are your local, Gas Safe registered experts for everything from urgent leaks to full renovations across London and Greater London.
Our Core Services:
* Emergency Plumbing: 24/7 response for burst pipes, blocked drains, leaks, and overflows. We aim to arrive within 1 hour.
* Heating & Boilers: Expert boiler installation, repairs, and annual servicing. We also specialize in Powerflushing and Underfloor Heating.
* Gas Safety: Certified Landlord Gas Safety Certificates (CP12) and inspections.
* Radiator Specialists: We use a unique "No-Drain" method for cleaner, faster radiator swaps.
* Refurbishment: Complete Bathroom, Kitchen, and House refurbishments, plus Air Conditioning installation.
We pride ourselves on honest pricing and quality workmanship. No hidden fees, just professional service you can trust.
Need a plumber now? Call: +44 7415 299943
Our Core Services:
* Emergency Plumbing: 24/7 response for burst pipes, blocked drains, leaks, and overflows. We aim to arrive within 1 hour.
* Heating & Boilers: Expert boiler installation, repairs, and annual servicing. We also specialize in Powerflushing and Underfloor Heating.
* Gas Safety: Certified Landlord Gas Safety Certificates (CP12) and inspections.
* Radiator Specialists: We use a unique "No-Drain" method for cleaner, faster radiator swaps.
* Refurbishment: Complete Bathroom, Kitchen, and House refurbishments, plus Air Conditioning installation.
We pride ourselves on honest pricing and quality workmanship. No hidden fees, just professional service you can trust.
Need a plumber now? Call: +44 7415 299943
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