Patio Sealing across Thurrock, London, Kent and surrounding areas

Protective sealer applied after pressure washing — locking out weeds, staining and algae regrowth and keeping block paving, slabs and natural stone looking clean for years longer.

Sealed block paving driveway in Essex after professional cleaning and sealing treatment
  • Agreed scope and records
  • Family-run business
  • Transparent pricing
  • Before & after photos
  • Digital job records
  • Cleaning & maintenance under one roof
Fully insured Essex, London & Kent Post-clean sealer — weed & stain resistant

Patio & Driveway Sealing Prices

Sealing is applied after pressure washing. A combined clean-and-seal price is available — and better value than booking separately.

Most Popular

Patio / Courtyard

from £120

Sealer only — surface must be clean and dry

  • Block paving, slabs & natural stone
  • Penetrating or surface sealer options
  • Joint stabilising sealer available
  • Weed and algae resistance
  • Easier cleaning after treatment

Driveway

from £200

Larger area — quoted on size

  • Full driveway area sealed
  • Joint sand stabilised where required
  • Enhancing or natural finish options
  • Combined clean + seal available
  • Completion photographs included

Sealing cannot be applied to a wet or dirty surface. See our pressure washing service — combined clean and seal is the most cost-effective approach.

Why Seal After Pressure Washing?

Pressure washing cleans the surface — sealing protects it. Without a sealer, a freshly cleaned block paving driveway or patio will begin to grow algae again within a single season, weeds will re-establish in the joints within a year, and oil staining from vehicles will penetrate deeply into the porous surface. The work needs doing again in twelve to eighteen months.

A good quality sealer applied to a clean, dry surface penetrates into or coats the surface and acts as a barrier. Algae and moss find it significantly harder to colonise. Weeds in the joints are suppressed by the joint stabilising sealer which binds the kiln-dried sand. Oil and food staining sits on the surface of the sealer rather than absorbing into the paving — it wipes or rinses away instead of becoming a permanent stain.

The surface also becomes considerably easier to maintain. A regular jet wash or garden hose removes surface debris without any significant regrowth beneath it. Sealed surfaces typically need a professional clean every three to five years rather than every one to two.

Sealer Types — Which Is Right for Your Surface?

Penetrating Sealer (Natural Finish)

Soaks into the surface and protects from within without changing the appearance. The paving looks the same as when dry. Ideal for natural stone and customers who want invisible protection.

Surface Sealer (Enhancing Finish)

Coats the surface with a thin film that deepens the colour and adds a slight sheen. Block paving looks richer and more saturated. The most popular choice for resin-bonded block paving.

Joint Stabilising Sealer

Penetrates the joint sand between blocks and binds it, preventing weed establishment and reducing the risk of ants undermining the joints from below. Recommended for any block paving with kiln-dried sand joints.

Surfaces We Seal

Block Paving Driveways

The most common request. Concrete and clay block paving absorbs oil readily and grows algae quickly between cleans. Joint stabilising sealer combined with a surface enhancer gives a durable, easy-clean finish that maintains the block's appearance for years.

Natural Stone Patios

Sandstone, limestone, slate and granite all benefit from penetrating sealers that protect the stone from staining and frost damage without altering the natural appearance. Each stone type requires a different product specification — we advise accordingly.

Concrete Slabs

Plain concrete and imprinted concrete are both sealable. Concrete is highly porous and absorbs oil and organics quickly. A quality penetrating sealer significantly reduces this porosity and makes the surface easier to clean.

Porcelain Paving

Porcelain has very low porosity and does not strictly require sealing in the same way as natural stone. However, the grout joints between porcelain slabs benefit from a joint sealer to prevent weed establishment and water ingress.

What's Included

  • Surface sealer applied — penetrating or colour-enhancing finish options
  • Joint stabilising sealer available for block paving
  • Block paving, natural stone, and concrete slabs all covered
  • Sealer type confirmed as appropriate to your surface before application
  • Completion photographs provided

What's Not Included

  • Pressure washing before sealing — surface must be clean and dry (available as a combined service)
  • Regrouting or jointing repairs before sealing (quoted separately)
  • Supply of kiln-dried sand beyond a standard joint top-up
  • Resin-bound or specialist decorative coating systems

Our Process

What You Can Expect

From your first call to the finished job, here is how our patio sealing service works.

1

Tell us the surface type (block paving, concrete slabs, natural stone, resin-bound), approximate area and whether you need pressure washing first or whether the surface is already clean and dry.

2

We recommend the appropriate sealer type for your surface and confirm the combined clean-and-seal price where relevant.

3

If cleaning is required first, we pressure wash and allow the surface to dry completely before applying sealer — ideally on a second visit or the following day.

4

Sealer is applied evenly across the surface using a sprayer and worked in with a squeegee or roller as appropriate. Joints are filled with kiln-dried sand and stabilised where required.

5

The sealed surface is ready for foot traffic within a few hours and vehicle traffic within 24 hours depending on conditions and sealer type.

Insider Advice

Helpful Hints & Tips

Surface must be completely dry before sealing

Sealer applied to a damp surface traps moisture, turns white and has to be stripped and reapplied. We allow at least 24–48 hours drying time after pressure washing before sealing in good conditions.

Top up joints before sealing

If your block paving joints are depleted, top them up with kiln-dried sand before the joint stabiliser is applied — the sealer locks the sand in place, so the joints need to be full to begin with.

Re-seal every 3–5 years

A good quality sealer on a clean surface lasts three to five years under normal use. Driveways with heavy vehicle traffic or in very exposed positions may need re-sealing more frequently.

Our Commitment to You

Our Cleaning Satisfaction Guarantee

If any area included in your clean does not meet the agreed standard, notify us within 24 hours of completion and we will return to re-clean the specific area at no additional charge. This covers Multrex workmanship on the agreed scope — it does not extend to pre-existing staining, damage present before the clean, areas excluded from the scope, or issues arising from subsequent use of the property.

  • Re-clean guarantee on any included area not meeting standard
  • Notification within 24 hours of completion
  • Covers our workmanship — not pre-existing conditions
  • Does not guarantee landlord deposit return (subject to inventory assessment)

Common Questions

Patio Sealing — FAQs

Why Multrex

Sealing That Protects — Not Just a Finish That Looks Good on Day One

Applied correctly to a clean, dry surface — the only way sealer works and lasts.

Applied Post-Pressure Wash

Sealer applied to a dirty or damp surface fails early and traps dirt underneath. We always clean and dry first — sealing is the final stage, not a shortcut to avoid proper cleaning.

Weed & Stain Resistant

A correctly applied impregnating sealer fills the pores of block paving and natural stone, making it significantly harder for weed roots to establish and for oil, bird mess, and algae to penetrate the surface.

Colour Enhancing Option

If your block paving or natural stone has faded, we can apply an enhancing sealer that deepens the original colour rather than a standard clear seal — restoring the look of the surface without replacement.

Request a Quote

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