Repairs, servicing and gas certificates for London landlords
One Gas Safe firm for certificates, repairs and emergencies across all of London. We deal with tenants on access. A call out is charged by the hour, and a return visit or further work is quoted first.
Gas Safe registered · 4.9 average from 229 reviews · £10m insured · 12 month guarantee
One firm for certificates, repairs and emergencies
Neos Engineering is a plumber for landlords across all of London: landlord gas safety certificates, repairs, boiler breakdowns and a 24 hour emergency line, all Gas Safe registered and based in Camden. Our record, 4.9 average from 229 reviews, is public onour reviews page.
One number and one certificate schedule, whether you have one flat or a portfolio.

How it works day to day
- You or the tenant reports the job by phone or email
- The engineer arranges access with the tenant directly
- 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 jobs get a written quote first.
- All work carries a 12 month guarantee
Gas safety certificates, on a schedule
Every let property with gas appliances needs a gas safety check every 12 months. We handleCP12 certificates for single lets and portfolios, and book each renewal as it falls due. Anything the engineer finds during the check is raised with you straight away.
Emergencies at a let property
The emergency lineruns 24 hours a day, 365 days a year, and covers tenanted properties. We are based in Camden, and the office gives an arrival window for the property's address when you call.

Checkable, before you hand over the keys
Gas Safe registered, City & Guilds qualified engineers, CHAS and SafeContractor accredited, £10 million of public liability insurance. Each one is listed on our about page, with how to check each. Rated 9.95 out of 10 on Checkatrade from 81 reviews, left for CJ Plumbing & Heating, one of the two businesses that merged to form Neos.
Related pages
Agency managed properties:letting agents. Flats in a shared block: block managers. The rest of our commercial work:everything we do for businesses. For single services, seeboiler repair,blocked drains and theareas we cover.
Guides: the landlord gas safety rules andgas certificates for commercial lets.
Put the portfolio on one number
Tell us how many properties you have and where. We will come back with a certificate schedule and how the repairs side works.
What landlords ask us
Do you arrange access with tenants directly?
Yes. Once a job is booked, the office and the engineer deal with the tenant on access and timing. You get the booking and the hourly rate, and a return visit or further work is quoted to you first.
Can you handle gas safety certificates for all my properties?
Yes. A CP12 must be renewed every 12 months for each let property with gas appliances. Send us the list and we book each renewal as it falls due.
What paperwork do I get after a job?
Gas safety checks come with the certificate for the property file. All work carries a 12 month guarantee.
How is pricing handled?
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. Materials, parking, the congestion charge and waste removal are extra where they apply. Larger jobs get a written quote first, and nothing proceeds until you agree it.
What happens when a tenant has an emergency at night?
The line is answered 24 hours a day, 365 days a year. You or the tenant calls, and the office gives an arrival window for the property’s address. We are based in Camden.
