Greater London · England
Commercial & hotel sealant in Harefield, Greater London
Commercial sealant across Harefield and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Mouldy washroom sealant that staff and guests notice
- Washrooms that need sorting before an inspection
- Mouldy bathrooms flagged at a tenancy check
Commercial sealant in Harefield
In showers and washrooms we use anti-fungal sanitary silicone, with a food-safe sealant by kitchen sinks where needed. We use sealants from Arbo and Everbuild, applied by ARBOMaster approved applicators. We work on office washrooms & kitchens, welfare facilities and rental portfolios, and the jobs we see most are rental bathrooms that need resealing between tenants and split sealant around staff kitchen worktops and sinks. Some people call us the mastic man, others the silicone man or the sealant specialist, but the work in Harefield is the same: old material out, joints prepared and the right product used.
In London, a commercial job often starts with access: loading bays, building rules and lifts. For a building in Harefield, we agree timings and access before anything starts, and room-by-room programmes can be planned where needed.
A one-year guarantee comes as standard.
- Where
- Harefield (UB9)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 07833 053749
- Last updated
- 26 October 2026
When to call us in Harefield
A hotel shower or office washroom is used many times a day, and they’re cleaned with strong products every day. That’s why sealant fails sooner.
Look out for any of the following:
- Failed floor-level joints in accessible wet rooms
- Too many rooms to reseal without closing the building
- Split sealant around staff kitchen worktops and sinks
- Washroom sealant that looks dirty however often it’s cleaned
Letting a property close to Denham station? Then sealant work can be quoted for a single flat or a whole portfolio.
What your quote should include
- The length of the guarantee
- What the cure time is
- What happens if the job turns out different
- What the quote includes, VAT included or not
Towns and villages near Harefield
More services for Harefield
What affects the cost of commercial sealant
Your quote is based on your job. We take into account:
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- The number and length of the joints
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Helping us quote
When you call or email, it’s useful to know:
- Where the property is
- Photos by email, if that is easy
- Access, such as stairs, a lift or height
- Any previous sealing or DIY work
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Surface by surface
Hotel bathrooms
Guest bathrooms are resealed room by room or in batches, keeping most of the hotel open. Housekeeping get a cure time for each room.
Office washrooms & kitchens
Long vanity tops have joints that hold water and grime. We renew it in one tidy, continuous bead.
What sealant work cannot fix
We’ll always be straight with you, so here’s what new sealant won’t do:
- Fire risk assessments or certification
- Tiles coming off the wall
- Water coming from plumbing rather than sealant
If you are not sure, just phone 07833 053749 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Rental portfolios
- Welfare facilities
- Retail & leisure sites
- Hotel bathrooms
- Office washrooms & kitchens
- Student & care accommodation
What happens on the day
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours per area, with larger sites planned over several visits. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- The first visit is a look round the site to agree the scope.
- We agree when we’ll work, with early or out-of-hours slots where they can be arranged.
- Each area is protected and stripped of old sealant.
- Once dry, every joint is resealed and tooled.
- We let your team know the cure time for every area.
Preparing for the visit
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
- Let us know if you’ve seen damp or leaks
How to get a quote
We do not publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, ring 07833 053749 or send us an email.
Related advice
Questions from Harefield
Is Harefield in your area for commercial sealant?
Yes, Harefield is within the area we cover. Our work covers London and the South East. Just ring 07833 053749 or send us an email with a few details of the job, and we’ll give you a clear price.
Can you help a landlord with a rental near Denham station?
Yes, rental work is part of what we do. You can phone 07833 053749 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Can you work outside opening hours?
That can be arranged. The hours are agreed before work starts.
Can you send RAMS and insurance details for our site?
Let us know which documents your site needs, such as method statements, risk assessments or insurance details, and we will confirm what we can provide when we quote.
Do you offer different sealant colours?
In most cases you can choose. We will tell you which colours the right product comes in and agree one before any work starts.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Leave it or put it right?
Room by room, the work is quick: the job takes a morning for a small washroom, and a planned programme for bigger sites. Each area is then left to cure for the time we give you, so the programme is planned around cure times. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
What you get with us
- Colour picked to suit the job
- We are fully insured
- Every job guaranteed for a year
- More than 20 years in sealant work
Take a look at our cost guide or our reviews.
Workplaces and buildings in Harefield
Many London buildings have tight access and loading restrictions, and out-of-hours working is possible to arrange. London has hard water, so limescale builds up on sealant, grout and fittings.
For site and facilities teams at buildings such as Harefield Infant School, busy washrooms and kitchens can be resealed in phases so they stay open. As a London address, Harefield can be tricky for parking: let us know about parking bays, permits or a driveway.
Harefield is about 3 miles south of Rickmansworth, in Greater London. We carry out commercial sealant for homeowners, landlords and businesses in Harefield and the surrounding area, as part of our work across Greater London. We cover 786 towns and villages across Greater London.
Every address in UB9 is within our area for commercial sealant, from the main roads to the quietest streets. Commercial sealant is available to properties on High Street, Vernon Drive and New Park Road. Other places close to Harefield include Hill End (1 mile north), Woodcock Hill (1 mile north-east), Batchworth Heath (2 miles north-east), Batchworth (2 miles north-east) and Mill End (2 miles north). Larger places within reach include City of Westminster (15 miles south-east), Kensington (14 miles south-east), Hampstead (13 miles east), Ruislip (4 miles south-east), Ealing (10 miles south-east) and Hayes (7 miles south-east).
What’s near Harefield
Around Harefield, our work takes us to homes and buildings near The King's Arms Public House, The Green and The Harefield Academy. For rail, the closest station is Denham station, roughly 2 miles south. A little further out are Chiltern Open Air Museum (3.4 miles north-west) and Harefield Hospital (within half a mile north-west). Green spaces nearby include Dews Farm Sand Pits and Horse Shoe Bay.