Block Paving Cleaning Exeter
Professional block paving cleaning, re-sanding & sealing from £60
Professional Block Paving Cleaning in Exeter
Block paving is the most popular driveway surface across Devon's new-build estates, and for good reason. It looks smart, adds kerb appeal, and increases property value. But block paving needs regular maintenance to stay in top condition. Without it, weeds take hold in the joints, moss and algae spread across the surface, ants nest under the blocks causing them to sink, and the kiln-dried sand that holds everything together washes away. At Owens Exterior Cleaning, we specialise in restoring block paving driveways and patios across Exeter and the surrounding area. Our professional cleaning, re-sanding, and optional sealing service brings your block paving back to the condition it was in when first laid.
From £60
Clear, upfront pricing with no hidden costs. Every job includes a free, no-obligation quote so you know exactly what to expect before we start.
47 Five-Star Reviews
Rated 5 stars across 47 Google reviews by Exeter homeowners. Fully insured with public liability cover for your complete peace of mind.
Same Week Service
Based locally in Exeter, we can usually book your block paving clean within the same week. No long waiting lists or drawn-out scheduling.
Why Block Paving Needs Professional Cleaning
Block paving faces unique challenges that other surfaces do not. The joints between blocks create the perfect environment for organic growth, insect activity, and structural problems if left untreated.
Weeds Growing Between Joints
Wind-blown seeds settle in the sand-filled joints and germinate rapidly in Devon's mild, wet climate. Left unchecked, weed roots push blocks apart and destabilise the entire surface. Dandelions, buddleia seedlings, and grass are the most common offenders on Exeter driveways. Manual pulling rarely removes the full root system, so weeds return within weeks.
Ants Nesting Under Blocks
Ants are one of the biggest hidden threats to block paving. They excavate the sand from beneath the blocks to build their nests, creating voids that cause blocks to sink and become uneven. You will often see small piles of sand appearing on the surface around the joints. Once ant colonies establish, the damage accelerates quickly and can affect large areas of your driveway.
Moss and Algae Growth
Exeter receives over 800mm of rainfall annually, and the mild South West temperatures create ideal conditions for moss and algae. These organisms spread across the block surface and into the joints, creating a green, slippery layer that is both unsightly and genuinely dangerous underfoot, particularly during autumn and winter when combined with fallen leaves and damp conditions.
Oil Stains from Vehicles
Block paving is porous, meaning oil and transmission fluid leaks from vehicles soak into the surface and leave dark, stubborn stains. These stains worsen over time as they penetrate deeper into the block material. Standard household cleaning products rarely make a difference. Professional degreasing agents are needed to break down the oil at a molecular level and lift it from the paving.
Loss of Kiln-Dried Sand
The kiln-dried sand that fills the joints between blocks is essential for structural stability. Over time, rain washes it away, foot traffic displaces it, and insects remove it. Once the sand level drops, blocks become loose and start to shift under vehicle weight. This creates an uneven surface, widens the gaps where weeds can grow, and accelerates further deterioration of the entire driveway.
Blocks Becoming Uneven
A combination of the problems above leads to blocks sinking, tilting, or rising. Uneven block paving is a trip hazard, damages vehicle tyres, and looks neglected. It also allows water to pool in low spots, which further undermines the sub-base. Addressing uneven blocks early prevents the need for a full relay, which is significantly more expensive than regular cleaning and maintenance.
Our Block Paving Cleaning Process
A thorough 6-step process developed specifically for block paving, ensuring a deep clean without damaging the surface or destabilising the blocks
Pre-Treatment
We apply a professional-grade moss and weed killer across the entire surface and let it dwell for the recommended time. This breaks down organic growth at the root, making removal far more effective than pressure washing alone. Stubborn oil stains are pre-treated with a specialist degreasing agent that penetrates the block surface to lift the stain from within.
Weed and Moss Removal
Once the pre-treatment has done its work, we remove all visible weed growth, moss, and debris from the joints and surface. This includes scraping out deep-rooted weeds, clearing moss build-up from between and on top of blocks, and removing any loose material. We take care to clear every joint thoroughly to prepare for re-sanding later in the process.
Pressure Washing
Using our commercial rotary surface cleaner, we pressure wash the entire block paved area at the correct pressure setting. The rotary head distributes water evenly across a wide area, avoiding the streaking and gouging that a standard lance causes. This gives a uniform, even clean across every block. The surface cleaner also contains the water spray, keeping splash-back and mess to a minimum.
Edge Detailing
The rotary surface cleaner cannot reach right up to walls, kerbs, and border edges, so we hand-clean these areas with a pressure washing lance at a controlled angle and reduced pressure. This ensures every visible area of block paving is cleaned to the same standard, with no dirty borders or missed patches. We also clean around drainage covers, manhole frames, and any step edges.
Joint Re-Sanding
Once the surface is clean and has started to dry, we sweep fresh kiln-dried sand into every joint across the driveway. The sand is worked into the gaps using a stiff broom and then compacted to ensure it fills to the correct depth. This step is critical: it locks the blocks in place, prevents immediate weed regrowth, discourages ant nesting, and restores the structural integrity of the paved surface.
Optional Sealing
For maximum protection, we offer a professional block paving sealant applied after cleaning. The surface must be completely dry, so sealing is typically completed the following day. The sealant bonds the kiln-dried sand into the joints, creates a protective barrier against oil and stains, inhibits weed growth, and enhances the colour of your blocks. Available in matte or wet-look finishes.
Block Paving Sealing
The best way to protect your block paving after a professional clean
Block paving sealing is an optional but highly effective step that extends the life of your clean and protects the surface against future damage. After your driveway has been thoroughly cleaned and re-sanded, a professional-grade sealant is applied across the entire surface. The sealant soaks into the blocks and joints, creating an invisible protective layer that works in several ways.
We use only commercial-quality sealants designed specifically for block paving. These are solvent-based or water-based depending on the finish you prefer, and they are UV-stable to prevent yellowing over time. Applied correctly, a block paving sealant lasts 3 to 5 years before needing reapplication, making it a cost-effective long-term investment in your driveway.
Bonds the sand into the joints so it cannot be washed out by rain or displaced by foot traffic, keeping blocks stable for years.
Sealed joints prevent seeds from settling and germinating. This is the single most effective way to stop weeds returning after cleaning.
The sealant creates a barrier that prevents oil and other fluids from soaking into the porous block surface. Spills can be wiped away easily.
Brings out the natural colour and tone of your blocks, making them look richer and more vibrant than an unsealed surface.
Sealed joints are far harder for ants to penetrate, significantly reducing the risk of sub-base damage and block subsidence.
Choose a natural matte finish that enhances without changing the appearance, or a wet-look gloss for a striking, polished look.
Block Paving Cleaning Prices in Exeter
Transparent, competitive pricing for block paving cleaning across Exeter and Devon. All quotes are free with no obligation.
| Service | Size | Price |
|---|---|---|
| Small Driveway | Up to 20m² | From £60 |
| Standard Driveway | 20 - 40m² | From £100 |
| Large Driveway | 40 - 60m² | From £160 |
| Extra Large Driveway | 60m²+ | From £200 |
| Add Re-Sanding | Per square metre | +£2/m² |
| Add Sealing | Per square metre | +£5/m² |
All prices are guides based on typical conditions. Final price depends on the size, condition, and accessibility of your block paving. Heavy weed infestation, deep staining, or difficult access may affect the quote. We provide an exact price after a free assessment. No obligation, no pressure. Call Paul on 01392 321611 for your free quote.
Common Block Paving Problems We Fix
We see these issues on Exeter driveways every week. All are treatable with the right equipment and expertise.
Sunken or Raised Blocks
Caused by ant nesting, poor sub-base compaction, or heavy vehicle loading. Blocks sink into voids or tilt upwards, creating trip hazards and an uneven surface.
We lift, re-level, and relay affected blocks as part of our service.
White Salt Deposits (Efflorescence)
White, chalky marks that appear on the surface of newer block paving. This is caused by natural salts within the concrete migrating to the surface as moisture evaporates.
We treat efflorescence with specialist acid-based cleaners that dissolve the deposits safely.
Tyre Marks and Oil Stains
Dark rubber marks from vehicle tyres and oil drips that soak into the porous block surface. These stains become more visible over time and are resistant to household cleaners.
Professional degreasing agents and hot-water pressure washing break down and remove these stains.
Green Algae in Shaded Areas
Block paving that sits in the shadow of walls, fences, or trees stays damp for longer and develops a green algae film. This is particularly common on north-facing driveways across Exeter.
Biocide treatment combined with pressure washing removes algae and slows regrowth.
Ant Damage to Joints
Ants excavate kiln-dried sand from the joints to build nests beneath the blocks. You will notice small sand piles on the surface and blocks that rock or feel loose when walked on.
We clear ant activity, re-sand joints fully, and recommend sealing to prevent recolonisation.
Faded and Discoloured Blocks
UV exposure and weathering cause block paving to lose its original colour over the years. Red blocks fade to pink, charcoal blocks turn grey, and the overall appearance becomes tired and washed out.
Cleaning reveals the original colour beneath the dirt. Sealing then locks in and enhances that colour.
Block Paving Cleaning Across Exeter & Devon
Based in Exeter, we clean block paving driveways and patios across the city and surrounding towns within a 45-minute drive. No travel charges within our standard coverage area. Whether you are in the city centre, the suburbs, or one of the surrounding Devon towns, we can help.
Frequently Asked Questions
Common questions about block paving cleaning in Exeter
How often should block paving be cleaned?
We recommend cleaning block paving every 12 to 18 months in Exeter and Devon. The South West's wet climate accelerates moss, algae, and weed growth, particularly on north-facing or shaded driveways. If you notice weeds pushing up through the joints or green algae forming across the surface, it is time for a clean. Regular maintenance prevents long-term damage, keeps the paving stable, and avoids costly repairs from subsidence caused by ant nesting or root damage.
Does pressure washing damage block paving?
Not when carried out by a professional using the correct equipment. We use a rotary surface cleaner that distributes water pressure evenly across the paving, rather than a narrow lance that can gouge individual blocks and blast sand out of joints. We also calibrate the pressure to suit the condition and age of your paving. After cleaning, we always re-sand the joints with kiln-dried sand to restore structural stability. DIY pressure washing with a standard lance is where most damage occurs.
How long does block paving cleaning take?
A standard driveway of around 30 to 40 square metres typically takes 3 to 4 hours to complete, including pre-treatment, pressure washing, edge detailing, and re-sanding. Larger driveways or those with heavy weed infestation and deep staining may take a full day. If you are adding sealing, we allow 24 hours for the surface to dry fully before applying the sealant, so sealing is usually completed the following day.
Do you re-sand the joints after cleaning?
Yes, re-sanding is an essential part of our block paving cleaning process. Pressure washing removes the existing kiln-dried sand from the joints, which is what holds the blocks in place and prevents weed growth. We sweep fresh kiln-dried sand into every joint after cleaning and compact it to ensure the blocks are stable. Without re-sanding, blocks can shift, weeds return faster, and the structural integrity of the driveway is compromised.
Is block paving sealing worth it?
Sealing is well worth considering if you want to extend the time between cleans and protect your investment. A quality sealant locks the kiln-dried sand into the joints, which prevents weed growth and stops ants from nesting underneath the blocks. It also protects against oil stains from vehicles, makes the surface easier to clean in the future, and enhances the colour of the blocks. You can choose between a natural matte finish or a wet-look gloss. Sealing typically lasts 3 to 5 years before needing reapplication.
Can you fix sunken blocks?
Minor subsidence and uneven blocks can often be corrected as part of our cleaning service. We lift the affected blocks, re-level the sand base underneath, and relay them flush with the surrounding surface. This is common where ant nesting has disturbed the sub-base or where heavy vehicles have caused localised sinking. For extensive subsidence affecting large areas, we can advise on whether a full relay is needed and recommend trusted local contractors.
Related Services
While we are at your property, consider these services to get everything looking its best
Driveway Cleaning
Full driveway cleaning for all surface types including tarmac, concrete, resin bound, and natural stone. Oil stain removal, moss clearing, and sealing from £60.
Learn more →Patio Cleaning
Expert patio cleaning and restoration for natural stone, concrete slabs, and block paved patios. Remove years of moss, algae, and staining from £45.
Learn more →Pressure Washing
General pressure washing for walls, paths, fences, steps, and other exterior surfaces. A clean driveway deserves clean surroundings to match.
Learn more →Ready to Restore Your Block Paving?
Get your free block paving cleaning quote today. Call Paul directly or use our online form for a same-day response. Same-week service available for most Exeter properties.
Get Your Free Quote Today
Ready to transform your exterior? Contact Paul for professional cleaning services across Exeter.
Send us a message
Get in touch directly
Call Paul
01392 321611Email Us
hello@owensexteriorcleaning.co.ukService Area
Exeter & Surrounding Areas
Why choose Paul?
Free, no-obligation quotes
Professional, insured service
Local, reliable & punctual
High-quality equipment & results
Competitive pricing