OSO Water Cylinder Services

At Aqua plumbing we specialise in Working on all OSO unvented water heater, we have qualified unvented plumbing with years of experience in OSO repairs and servicing.
We offer a fast repair service so we can get your water heater back up working as quick as possible and cause you the least inconvenience
If you are looking to get your OSO replaced due to its age or just want a upgrade we offer free quotes on new OSO installations 
All Heatrae Sadia Megaflo repairs come with a one year guarantee on workmanship  plus the manufactures warranty on the parts.
All our Megaflo servicing, repairs and installations are carried out by fully qualified and trained Logic engineers.
  • All OSO repaired, serviced and installed
  • Only genuine parts used for repairs
  • Emergency repair service
  • Qualified unvented heater engineers

OSO services

At Aqua Plumbing we specialise in working on all OSO unvented water heaters. We have qualified plumbers with years of experience in OSO repairs and servicing in Essex.

We offer a fast repair service so we can get your water heater back up and working as quickly as possible to cause you the least inconvenience

If you are looking to get your OSO replaced due to its age or just want a upgrade we offer free estimates on new OSO installations

All OSO repairs come with a one year guarantee on workmanship plus the manufacturer’s warranty on parts.

All our OSO servicing, repairs and installations are carried out by fully qualified and trained Logic Essex engineers.

  • All OSO repaired, serviced and installed
  • Only genuine parts used for repairs
  • Emergency repair service
  • Qualified unvented heater engineers
Call / Text / WhatsApp:  07930 128 365

Most common water heaters we work on

What our customers say

PaulaPaula
17:45 09 Apr 23
Have used Danny many times now. Always prompt to respond and gets things done on time. Very reliable
Mark WachMark Wach
18:33 23 Mar 23
I found Danny to have very good communication skills, very good time keeping, reliable and excellent workmanship.
Jon BlankfieldJon Blankfield
10:32 14 Mar 23
Highly recommended - Danny has helped us out on a number of occasions with our Megaflo service and repairs. Always responsive and available quickly.
James Mullett-MerrickJames Mullett-Merrick
17:49 29 Nov 22
Danny was very prompt, professional & competent.
Mel RothwellMel Rothwell
08:37 17 Mar 23
I have used Danny a fair few times now to perform Gas Cert at tenanted properties. I do not live anywhere near the properties and the service I have received from Danny and all at DJC has been fantastic. Brilliant communication, ,turns up on time and with a couple of tenants who needed a bit of extra attention was happy to facilitate . I Cannot recommend this company high enough. It’s all done remotely so thank you very much guys for making this process, quick and easy
Nimisha PatelNimisha Patel
18:47 15 Mar 23
Great service and love the honesty and professionalism, solution based and very quick quality service. Thank you so much
Dave AylwardDave Aylward
15:12 07 Feb 22
Very easy to deal with. Great communication and kept me fully informed. Reliable and punctual. All paperwork completed for me including guarantee and local authority registration.
Mandy lewisMandy lewis
16:55 01 Feb 22
Prompt good communications. Fair price. Helpful & proffessional and informative when asking questions regarding boiler /thermostat advice. Recommended.
Anthony SotiriouAnthony Sotiriou
16:01 06 Mar 21
Dan was really helpful, and extremely knowledgeable. When a service didn't quite go to plan Dan swiftly identified the fault and managed to repair it on the same day, knowing we have a young family he made sure we weren't left without water and heating! Great service and a lovely guy. Thanks!
Mark WilkinsonMark Wilkinson
14:42 17 Nov 23
Great service, turned up when he said he would, responded to messages, did a good job. Couldn't ask for more.
Elaine KingElaine King
16:45 10 Oct 23
Danny did the job, prompt, professional and no fuss, good price tooI will definitely use Danny’s services again - Thank you Danny ⭐️⭐️⭐️⭐️⭐️
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OSO servicing, repairs & installations

OSO Servicing

Its important to get your OSO serviced yearly to make sure it is safe to use as there are safety devices on the unit that must be checked.
During the OSO servicing the air gap will be recharged, all the safety devices tested and checked with the resistance on the immersion to make sure they are heating up and there are no leaks.

OSO repairs

OSO water units are in constant use to give your home hot water all year round so it inevitable that after some time parts will need replacing due to wear and tear.  The most common problem for hot water loss is faulty immersion elements or thermostats. These can be easily sourced and replaced.
 

OSO installation

If you are looking to get your OSO replaced due to age and want an upgrade to a more modern OSO unvented water heater then call Aqua Plumbing. We offer free estimates on new OSO installations.

What’s in a unvented service

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Visual checks

Check that the appliance has been installed correctly and to the manufacturer’s specification and there are no leaks.
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Electrical check

Check the immersion heater has been wired correctly and working. Also check the immersion heater for resistance.
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Regenerate air gar

Turn mains off and reset the air gap in the tank. This can sometimes improve water pressure and stop temperature and pressure valves dripping.
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Safety devices

Check the pressure relief valves are working correctly and termination point are correct.
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Paper work

Complete customers service record and issue a certificate for the service.

OSO common faults

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Unvented cylinder leaking

OSO unvented water heaters over time can incur leaks as they are a water cylinder under pressure, most common leaks are from the immersions or safety valves.
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No hot water

If your OSO water tank is not producing hot water this could be few problems like the immersion, fuses or thermostats are faulty, these parts can be easily replaced.
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Immersion heaters

All OSO are fitted with immersions a main one at the bottom and a booster one in the middle over time these elements will need replacing due to wear and tear.
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Unvented cylinder leaking

OSO unvented water heaters over time can incur leaks as they are a water cylinder under pressure, most common leaks are from the immersions or safety valves.
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No hot water

If your OSO water tank is not producing hot water this could be few problems like the immersion, fuses or thermostats are faulty, these parts can be easily replaced.
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Immersion heaters

All OSO are fitted with immersions a main one at the bottom and a booster one in the middle over time these elements will need replacing due to wear and tear.

Our accreditations

Towns we cover and surrounding areas

Call / Text / WhatsApp:  07930 128 365