Plumbing and heating across a property manager's London portfolio
Planned maintenance, gas safety records and one 24 hour number across the homes and blocks you manage. CHAS and SafeContractor accredited.
Gas Safe registered · 4.9 average from 229 reviews · £10m insured · 12 month guarantee
An account, not a string of one off jobs
Neos Engineering is a Gas Safe registered plumbing, heating and drainage contractor for property management companies across all of London. Planned maintenance, one 24 hour number and paperwork that keeps each compliance file current. Our review record: 4.9 average from 229 reviews.
Access is arranged with tenants and residents directly. Your coordinator raises the job once, and is not left relaying times between an engineer and a flat; a return visit or further work is put to you before it goes ahead. Out of hours, a tenant can ring the 24 hour number directly and is given an arrival window for the home.
What we cover
Inside the homes you manage: emergency plumbing, boiler repair and servicing, andlandlord gas safety certificates. In the shared parts of a block, the communal boilers and pumps come underplant room maintenance, with risers, tanks and communal leaks undercommercial plumbing and the shared drains undercommercial drainage. Where the portfolio includes offices or shops, their boilers are covered bycommercial boiler servicing and repair. Coverage is all of London; the areas page maps it.
Gas safety certificates across the portfolio
Each let home with gas appliances needs a safety check every year by a Gas Safe registered engineer. Tenants already in the property must get a copy of the record within 28 days of the check, and a new tenant before moving in. Each record is kept until two further checks have been done, which is about 2 years, and a check carried out in the 2 months before the due date keeps the existing renewal date (renewing early).
A certificate is from £110 + VAT (£132 inc VAT), per appliance. With the boiler's service done on the same visit, the price is from £200 + VAT (£240 inc VAT), service and certificate for one boiler.Each extra gas appliance on the certificate is £110 + VAT (£132 inc VAT). SeeCP12 certificates, andwhen an agent holds the gas duty.
Checks before you add us to the supplier list
Every credential a procurement team asks about, from Gas Safe registration and CHAS to the £10 million liability cover, is on theapproved supplier checklist, with how to check it or ask for it.
How a new portfolio starts
Send us the address of the building with the most call outs. We visit and survey it, record the plant and the trouble spots, and put the scope and the price in writing; nothing is booked until you accept. Other buildings follow once the first is settled. For commercial sites, seefacilities management companies; for communal plant,block managers; for tenanted stock, landlordsand letting agents.
Guides: Ofgem and communal heating,who pays when a communal boiler fails andlandlord gas safety rules.
The record behind the arrangement
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.
Bring us the building that causes the most calls
A site survey, then a written quote with the scope and the price before anything is booked.
Questions from property managers
What compliance paperwork do you produce?
Landlord gas safety certificates (CP12) where needed, and condition surveys of communal plant with anything near end of life flagged to you.
Can you keep gas safety certificates on schedule across our lets?
Yes. Send the list of properties with their renewal dates and we book each check as it comes due, arranging access with the tenant. A check in the 2 months before the due date keeps the same renewal date, so the schedule does not drift.
Who registers communal heating with Ofgem?
The heat network’s operator and its supplier, not the contractor that maintains the plant. Ofgem has regulated heat networks since 27 January 2026, and networks already running must be registered by 26 January 2027. Our guide to heat network regulation for blocks of flats, linked on this page, sets out who counts as the operator and who the supplier.
How are call outs and planned work 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. Planned maintenance and larger jobs are quoted in writing after a site survey, before anything is booked.
Do you work on residential blocks as well as commercial buildings?
Yes, both: offices, shops and other commercial buildings, and residential blocks with communal heating, plant rooms and shared drains, across all of London.