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Covering Greater London and major UK cities. Our operators answer 24 hours a day, 7 days a week; for emergencies we aim to be on-site in around an hour.

//TESTIMONIALS

What people say about our services

Customer. man

Daniel Wright

“We called OSO after another company left us with a dangerous electrical job. The engineer came within the hour, fixed it properly, and the price was almost half of what we had already paid.”

5 stars review
Customer. women

Aisha Khan

“Water was pouring through my kitchen at midnight. I expected to wait until morning, but OSO sent someone straight away. Quick, calm, and very reasonable for an emergency.”

5 stars review
Customer. man

Sean O’Connor

“Our boiler stopped working on the coldest day of the year. The engineer turned up same day, sorted it in one visit, and made sure everything was safe. Really solid service.”

5 stars review
Customer. women

Amelia Rossi

“Other firms tried to make our drainage issue sound worse than it was. OSO just got on with it. They told me the price up front and stuck to it. Honest and stress-free.”

5 stars review
Customer, male

Suresh Iyer

“Our boiler gave up on a Sunday morning. They came in one hour and had it running again before lunch. Good Job Daniel!”

5 stars review
Customer, girl

Sophie Novak

“We wanted a safety check before moving into an older property. The engineer was thorough and picked up small issues we never would have noticed. Very reassuring to know it’s safe now.”

5 stars review

Having a problem?

Contact us anytime, our team is always happy to help.

Request a Call
Request a call and we’ll get back to you ASAP to confirm details and book an engineer at a time that suits you. If it’s an emergency, please call us 24/7 for the fastest response.

Request a Call
Request a call and we’ll get back to you ASAP to confirm details and book an engineer at a time that suits you. If it’s an emergency, please call us 24/7 for the fastest response.