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Williams R.O & Sons Ltd

Cydnerth, Gellilydan, Blaenau Ffestiniog, Gwynedd, LL41 4RB Directions

Why Choose Us?

Quality Service
High Quality
Expert Advice

Business overview

  • New Builds
  • Extensions
  • Drainage & Groundworks
  • Repairs
  • Roofing
  • Federation Of Master Builders

Professional building services

If you're looking for expert, reliable and affordable build services throughout Blaenau Ffestiniog and surrounding areas, look no further than R O Williams & Sons Ltd. Whether you're planning to make adjustments and refurbishments to an existing property or whether you have plans for a brand new build, our team are on hand to provide you with all the building services you're going to need. For all your building servicing needs, call R O Williams & Son Ltd today.

Our building services include:

• New builds

• Extensions

• Loft conversions

• Garage conversions

• Property refurbishment

• Re-builds

• Alterations

• Repairs

• Maintenance

In addition to providing expert building services, we also specialise in a variety of different groundwork services. For more information

Products & Services

Building contractor




kitchen Fitting

barn conversions

block paving


building conversions

building maintenance & repairs

building refurbishments

building renovations



dry lining


fascias & soffits

federation of master builders member

garage conversions

house builders

house extensions

loft conversions

paving & driveways


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