Wood Treatments

Wood Treatments: Preservers, Fillers & Protective Coatings

At Burnt Oak Timber we understand that the durability and performance of your timber and exterior woodwork depend just as much on the right treatment as the timber itself. That’s why our Wood Treatments range includes specialist products designed for trade and professional use, from durable wood preservers and high-performance fillers to clear protective coatings and weather-resistant treatments.

Whether you are securing structural timbers, refurbishing fencing and decking, or completing internal joinery with the correct surface finish, you’ll find products that meet demanding standards and project realities. With stock held locally and support from our team in Harrow, you can keep your site moving while ensuring your timber works continue to perform, look better for longer and require less maintenance.

Filter products
The highest price is £31.00
£
£
Clear all

6 Products

Why use our wood treatment products?

  • Our selection is purpose-built for building site needs and refurbishment projects, covering core categories such as wood preservers, timber protection treatments, and wood fillers.
  • We stock trusted brands supplied with clear product specification, making it easier for you to select the right item and reduce errors on site.
  • By using professional-grade treatments you reduce risk of rot, insect attack, moisture damage or premature decay—extending life-span and reducing maintenance costs.
  • For exterior use especially, applying the correct treatment simplifies compliance with building codes and industry best-practice.
  • Our team knows builders and fit-out contractors, so you benefit from both product stock levels and practical advice when you need it.

Typical applications

Structural and exposed timber protection

Use preservers and treatments on external framing, joists, timber repairs, battens or cladding that might be exposed to moisture or insect attack — ensuring longevity and maintaining performance.

Refurbishment and maintenance works

From replacing rotten sections to treating existing timber on site, our fillers and total wood preservers give you solutions for repairing and restoring rather than replacing entire elements.

Finish and surface protection

For internal or external joinery, coatings and fillers help deliver a clean finish, protect surfaces and prepare wood for decoration or additional coatings. This improves both aesthetics and resilience against wear and environment.

Product range and selection tips

We carry key product types including:

  • Wood preservers and treatments: designed for protection of structural or exposed timbers.
  • Wood fillers and surface repair products: enabling you to deal with defects, holes or previous damage before finishing.
  • Clear or tinted protective coatings: for aesthetic protection of exterior wood or internal joinery work.

When choosing a treatment product, keep these considerations in mind:

  • Confirm the specification for exposure-category (external vs internal) and content suitability for the timber use.
  • Check coverage rate, drying time and compatibility with subsequent coatings or finishes.
  • For structural exposure, ensure preservative treatment meets required building-regulations or industry standards.
  • Ensure the product is applied as per manufacturer instructions (e.g., correct number of coats, surface preparation) to get full performance.

Service you can count on

Burnt Oak Timber delivers not just products, but service built for trade and contractors:

  • Rapid fulfilment from our Harrow branch and efficient delivery or local collection options.
  • Advice from staff familiar with timber and treatment applications, helping you avoid specification mistakes or wasted product.
  • Flexibility in ordering: whether you need a small refurbishment pack or bulk items for a site roll-out.
  • Reliable stock of core treatments, minimising wait times and enabling you to programme jobs without delay.

Why choose Burnt Oak Timber for your wood treatment supplies?

  • Fast delivery aligned with trade-work programmes.
  • Over 10 years of hands-on experience serving builders, fit-out contractors and renovators.
  • Wide and relevant product range: from timber itself through to protection and finishing supplies.

Frequently Asked Questions

What types of wood treatment products are available in this category?

We supply a focused range: wood preservers for structural/external timber, total wood treatment solutions, high-quality fillers for repair work, and protective coatings to finish surfaces.

Can I use the same treatment for interior joinery and external structural timbers?

While some products are multi-purpose, it’s best practice to use treatments specified for the application. External structural timbers often require more robust protection compared to internal joinery or decorative work. Our team can help you determine the right product for your need.

How soon after treatment can I apply paint or varnish?

Drying times vary between products. Always refer to manufacturers’ guidelines on the label — ensure the surface is clean, dry and the treatment fully cured before applying further coatings.

Do you offer delivery of wood treatment products?

Yes — from our Harrow branch, we deliver across our trade area with reliable service. We can also accommodate collection if required.

Why choose Burnt Oak for your building supplies?

  • Quick Delivery

    Materials delivered quickly, so your building project never skips a beat.

  • 10+ Years Experience

    Decades of hands-on experience, helping local builders get the job done.

  • Wide Product Range

    One stop, everything you need. Quality materials for every stage of the build.