UK Diveworks Ltd

Underwater Swimming Pool Repairs and Maintenance

UK Diveworks Ltd specialises in underwater pool repair and maintenance of domestic and commercial swimming pools throughout the UK. A professional service offering competitive costs and excellence in customer care. Pool repair and maintenance can be undertaken during off peak times to maximise pool use.


01202 764001

about uk diveworks

With a wealth of knowledge, the management, procurement and delivery team have over 25 years of experience in offshore and inshore sectors and are time served commercial divers in their own right. We can offer all aspects of underwater swimming pool repair, maintenance inspection and regulatory advice. Our divers are experienced and trained to H.S.E. Standard which ensures the highest standard of work is completed whilst the highest level of safety is maintained. UK Diveworks are proud of their 100% safety record. As our client, you can be assured that a professional completion will be achieved on all works.

We hold Liability Insurance cover up to £5m and UK Diveworks are a registered diving contractor with the HSE. Click here to view UK Diveworks policies.

UK Diveworks Ltd

Draining your pool v. underwater work

Costs of draining a swimming pool

  • Water replacement
  • Chemical replacement
  • Reheat cost
  • Staff cost
  • Loss of revenue
  • Repairs due to loss of water pressure within pool
  • Upset customers
  • Pressure on management

Underwater work examples

  • Grout replacement
  • Tile replacement
  • Grille and plastics replacement
  • Ladder replacement
  • Striker plate installation
  • Leak detection
  • Moving floor repairs
  • Pool side tile replacement
  • Balance tank inspection, repair and maintenance

Diver regrouting pool floor

UK Diveworks Ltd

Results of regrouting

UK Diveworks Ltd

Underwater and Poolside Services

Pool Inspection and full report

Underwater pool inspection
  • UK Diveworks carries out full and comprehensive inspections to provide a detailed pool report suitable for insurance purposes and to ensure that Health & Safety requirements are being met. Health & Safety plays a huge part of any establishment and swimming pools are no different. Swimming pool operators are legally bound by the H.S.E to provide for the health and safety of employees and pool users.
  • Our pool inspections include reports on:
  • * lights and light fixtures
  • * leaks and leak source
  • * tile defects
  • * grout condition
  • * expansion joints
  • * grilles and plastics including anti vortex check
  • * fastener conditions (screws / wall fixings)
  • * striker plates (if present)
  • * moving floor detail
  • * balance tank condition
  • * poolside condition
  • * poolside fixtures such as plastic grilles over overflow channels
  • * diving platforms
  • * ladders
  • * finger grip tiles
  • UK Diveworks inspect all types of commercial swimming pools including hotel pools, leisure centre pools, private establishments, school and council swimming pools. Following the inspection you will receive a report setting out the areas that require attention to meet Health & Safety standard and user safety, along with an estimate for the necessary work.
  • UK Diveworks are able to carry out inspections on an annual basis, 6-monthly basis, monthly basis or ad hoc, to ensure that your pool is free from any dangers subsurface. A full video survey can be included in your report. Any defects are captured using underwater photography and a copy is supplied as evidence of our findings.
  • UK Diveworks offer discounts on any remedial works that are required as a result of our inspection works. Working with our clients to ensure a safe operating pool is our number one priority.


Underwater repairs
  • Missing and broken tiles are an easy fix for our experienced divers. Using up to date techniques and specially formulated underwater grout and adhesive, we can ensure the highest standards of finish.
  • Whether it's floor tiles or wall tiles, our underwater tiling service ensures safety to pool users, integrity to your swimming pool and a superior looking pool. Size really doesn't matter to us, we can install all sizes of tile, right down to mosaics and are happy to replace a single tile or complete a full swimming pool re-tile.
  • With a stock of tiles and adhesive/grout, we can respond to any emergency repair requirement to get your pool back to a safe operational standard.
  • Night works are available for minimum distruption to swimming pool timetables.

Swimming pool grouting

Underwater repairs

Grout fall out is a common problem within swimming pools and poses the issue of sharp edged tiles. Our grout replacement service ensures the integrity of the tiles and safety of the pool's swimmers. Full regrout or partial regrout services are available.

Underwater Grille & plastics replacement

Underwater repairs

We work closely with our suppliers and can source all aspects of replacement covers, grilles, surrounds and protectors. Whatever your requirements regarding replacement plastics, we have them covered.

Balance Tank Services

Underwater repairs

Our dive teams are trained in confined space and are able to access balance tanks safely.
Our services for balance tank works include:

  • Balance tank clean and debris removal
  • Balance tank Inspection and report
  • Balance tank maintenance
  • Balance tank repair

Underwater Expansion Joints

Underwater repairs

UK Diveworks Ltd undertake all tile expansion joint repair works. Replacement of mastic joints to Epoxy Resin is a common work scope that we are asked by our clients to complete.

Pool cleaning and debris removal

Underwater repairs

Cleaning services include:

  • Algae clean
  • Void beneath moveable floor clean
  • Pool side tile clean
  • Grout clean
  • Grout scrub
  • Balance tank cleaning
  • Glass removal

Drilling and fixing

Underwater repairs

We complete various types of fixings within swimming pools. Our teams regularly drill and fix new grilles, lighting blanks, striker plates for ladders, starter blocks, anchor points for lane ropes and much more.

Channel Clean & Grate replacement

Underwater repairs

Pool Plant team

  • Facilities inspection and audit reporting
  • Filter servicing
  • Plant equipment upgrade-replacement
  • Pool plant compliance inspection
  • Pool water treatment analysis
  • Other training services

With decades of experience in the management and operation of swimming pools, our Pool Plant team not only know the pool system inside out... They literally wrote the book on it!


We offer all aspects of pool Plant technical support from installation, servicing and repair of plant equipment to regulatory inspections, training and consultancy.


Our team consists of highly qualified and experienced professionals that our not only trained to the highest standards, they have trained thousands of pool Plant professionals in the UK and abroad and continue to train hundreds more each year.


The team hold accreditation from IOSH, NEBOSH, Gas Safe, CIMSPA and ISPE and are two of only six CIMSPA pool Plant tutors in the country. You couldn't put your pool in safer hands!


Confined Space Services

Underwater repairs

Confined spaces can be deadly. On average, work in confined spaces kills 15 people every year in the UK across a wide range of industries, from those involving complex plant through to simple storage vessels and rooms. In addition, a number of people are seriously injured. Those killed include not only people working in the confined space but those who try to rescue them without proper training and equipment.


A confined space is a place which is substantially enclosed (though not always entirely), and where serious injury can occur from hazardous substances or conditions within the space or nearby (e.g. lack of oxygen or explosive risk)


Some confined spaces are fairly easy to identify, e.g.

  • Enclosures with limited openings:
  • Storage tanks
  • Silos
  • Enclosed drains and sewers


Others may be less obvious, but can be equally dangerous e.g.


  • Open-topped chambers
  • Vats
  • Combustion chambers in furnaces
  • Ductwork
  • Unventilated or poorly ventilated rooms


At UK Diveworks Ltd our teams of divers are also fully qualified and trained to deal with any confined space work scope that you require. Using breathing apparatus is a natural, daily occurrence for divers and who better to employ than divers trained in confined space. As a company we follow strict legislation outlined by the H.S.E (Health and Safety Executive). A full risk assessment is made and the following is considered


  • avoid entry to confined spaces, e.g. by doing the work from the outside
  • if entry to a confined space is unavoidable, follow a safe system of work
  • put in place adequate emergency arrangements before the work start


Our dedicated team can accommodate all types of confined space works and regularly complete


  • Culvert inspections
  • Balance tank entry (swimming pools)
  • Fuel tank entry
  • Storage tank entry
  • Silo maintenance
  • Enclosed drain inspections and repair




UK Diveworks Ltd



01202 764001




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