Block paving sealing in Harpenden: what to expect
Homes in Harpenden include plenty of semis and detached houses with room for a drive, plus older terraces where parking is tighter.
Flat ground across much of the East means falls have to be built in carefully so water does not sit on the drive.
How much does a block paving sealing job cost in Harpenden?
Expect block paving sealing jobs in Harpenden to come in at around £5.50–£16 per m², including VAT at 20%. As an example, a 50 m² drive usually comes to between £265 and £790.
| Item | Guide price inc VAT |
|---|---|
| Sealing only | £5.50–£16 per m² |
| Jet wash clean with a rotary cleaner | £2.50–£5.50 per m² |
| Clean and re-sand | £5.50–£11 per m² |
| Clean, re-sand and seal | £8.50–£20 per m² |
Guide figures for the East of England, checked 9 November 2026. See all prices or use the guide price tool.
What is included?
Sealing block paving means applying a clear liquid sealer to clean, dry paving. A good sealer soaks into the blocks and the jointing sand, binding the sand so it does not wash out, reducing staining and making the surface easier to keep clean. Some sealers also deepen the colour or leave a light sheen.
- Second coat where the product requires it
- Edges, walls and doors protected
- Drying time and a date when cars can return
- Check that the paving is clean, re-sanded and dry
- Sealer applied evenly by roller or low-pressure sprayer
Before we price your block paving sealing job
- Which sealer finish suits a slope or patio
- Walls, doors and planting to protect
- Shade and drainage, which affect regrowth
- Moss, algae, weeds and oil staining
- Whether the paving is permeable (no sand, no sealing with the wrong product)
What happens next
Send the basics
Postcode, what you need and a rough size. Photos help.
Survey
We measure, check levels, ground and drainage, and talk through blocks and patterns.
Written quote
An itemised quote with the specification, the price and the start date.
The work
Our paving team builds it to the agreed specification and leaves the site swept.
Why choose Block Paving Contractors
Clean finish
The site is swept, the joints are filled and you are shown how to look after the paving.
The dig and sub-base in writing
Your quote states the depth of dig, the sub-base thickness and how it is compacted.
Water planned first
Falls, channels and soakaways are designed before the pattern is chosen.
One point of contact
You deal with one team from survey to sign-off, with work carried out by paving teams working under S&K.
Sealing in Harpenden: questions
Can you seal my drive straight after cleaning?
Only once it is completely dry and re-sanded. Sealing damp paving traps moisture and can leave a white bloom.
Will cleaning damage my block paving?
Not when it is done with a rotary cleaner at medium pressure and the joints are re-sanded afterwards. High-pressure lances held close are what cause damage.
How much does a block paving sealing job cost in Harpenden?
Guide price for Harpenden: £5.50–£16 per m² including VAT, with a minimum charge for small areas.
Do you cover St Albans, Hemel Hempstead and Welwyn Garden City?
Yes. We cover Harpenden and the places around it, including St Albans, Hemel Hempstead and Welwyn Garden City, and the rest of Hertfordshire.
Sealing near Harpenden
Nearby towns we cover for sealing, and sealing across Hertfordshire:
- Sealing in St Albans
- Sealing in Hemel Hempstead
- Sealing in Welwyn Garden City
- Sealing in Hatfield
- Sealing in Stevenage
- Sealing in North Watford
