Planned maintenance and repair contracts for London buildings
Planned maintenance and 24 hour repairs for the buildings you run, from one CHAS and SafeContractor accredited contractor, £10m insured.
Gas Safe registered · 4.9 average from 229 reviews · £10m insured · 12 month guarantee
We are Gas Safe plumbing, heating and gas engineers based in Camden, working for businesses across all of London and for homes anywhere inside the M25.
Facilities management companies
One contractor for plumbing, heating, gas and drainage across a portfolio of sites: planned maintenance, reactive repairs and one 24 hour number.
How we work with facilities managersProperty management companies
Planned maintenance, compliance paperwork and a 24 hour emergency line at portfolio scale.
How we work with property management companiesBlock managers
Communal heating, plant rooms and recurring drainage across the buildings you run.
How we work with block managersCommercial Catering
CP42 gas safety checks, kitchen plumbing and the drains that keep blocking, for restaurants, cafés, pubs and hotel kitchens.
How we work with commercial kitchensLandlords
CP12 certificates, repairs arranged directly with tenants, and one firm across a whole portfolio.
How we work with landlordsLetting agents
A contractor for the managed book: tenant access arranged by our office, and CP12 certificates on time, sent back to you for the landlord’s file.
How we work with letting agentsSectors and services
Sectors
- Hospitality
- Hotels
- Retail
- Leisure & Entertainment
- Education
- Offices
- Embassy
- Healthcare

The specialist work behind the contracts
The centre of our commercial offer isplant room and communal heating maintenance:commercial boiler servicing and repair, burners, pumps and heat network pipework. Around it sitcommercial plumbing, gas work by Gas Safe engineers andcommercial drainage, so one firm covers the building end to end.
Planned maintenance contracts
Neos Engineering has recurring maintenance agreements with commercial clients. Planned maintenance means visits booked in advance rather than call outs, with the schedule set by the equipment in each building. For plant rooms and communal boilers that means burner servicing, combustion checks and flue testing, and checks on the pumps, valves and pressurisation units. For plumbing it means planned visits across one building or several, and for drains, planned drainage maintenance for buildings and portfolios. Plant near the end of its life is flagged when we see it.
Planned work is quoted in writing aftera site survey, before anything is booked. Repairs between visits come in on the same 24 hour number.
One number, day and night
Calls are answered 24 hours a day, 365 days a year. Our base is inCamden; call with the site's postcode and you get an arrival window for that address.
How the work is charged
The hourly rate is confirmed when you book. A call out is charged by the hour, and a return visit or further work is quoted first. Larger one off jobs, such as replacing a boiler, are surveyed and quoted in writing the same way as planned maintenance.
The approved supplier checklist
- CHAS accredited
- SafeContractor accredited
- £10 million public liability insurance
- Gas Safe registered, number 917055, with City & Guilds qualified engineers
- 12 month guarantee on all works
- Neos Engineering London Ltd, Companies House number 13897050
Gas Safe registration and the company number can be checked on their public registers, and the scheme certificates and insurance details are sent on request. Our about pagelinks both registers.
Guides for the people who run buildings
- CP42 certificates for commercial kitchens, explained
- Grease trap rules for commercial kitchens in London
- Hotel gas safety certificates: guest rooms and kitchens
- Commercial boiler servicing: the law and the standards
- How often should a communal boiler be serviced?
- Communal boiler breakdown: who is responsible and who pays
- Heat network regulation: what it means for a block of flats
- Blocked drain in a block of flats: who is responsible
- Drain keeps blocking? Why it happens and the real fix
- Landlord gas safety certificate rules, explained
- Letting agents and gas safety: who holds the legal duty
Homes as well
We also work for homes anywhere inside the M25, from emergency plumbing to boiler servicing. Every service we offer is listed for businesses and homes.
Check us before you shortlist us
Rated 4.95 out of 5 on TrustATrader, and 9.95 out of 10 on Checkatrade from reviews left for CJ Plumbing & Heating, one of the two businesses that merged to form Neos. Every review is on a platform we cannot edit, and the links go straight to the originals.
Stars are drawn from each platform’s real score and never rounded up. The average is weighted by how many reviews each platform holds, and uses the lower of the two TrustATrader scores.
Start with a conversation
Tell us about the building by phone or email, or book a site survey. Written scope and price before anything is booked.
