Sealant specialists in Fleet
Sealant work for offices, shops, hotels and other commercial buildings in Fleet and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.
- Layers of sealant, all of them failing
- Damp patches where an external joint has failed
- Hardened, chalky sealant on south-facing or exposed elevations
Commercial sealant contractors across Fleet
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Commercial sealant contractors in Fleet, done properly
Mastic Doctor has been sealing joints for businesses and contractors since 2005, and the paperwork side is in order: we’re CHAS accredited and a Constructionline member, our applicators hold CSCS cards, and we carry five million pounds of public liability insurance. If your site needs RAMS, an insurance certificate or CSCS details, say so and we will confirm with the quote. Site teams most often ask us about window and door perimeter joints that have cracked open and movement joints packed with grit and debris, on window and door perimeters, floor and threshold joints and kitchen worktops and splashbacks. Most enquiries from Fleet start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
In Fleet, as anywhere, the first joints to go are typically the ones that work hardest: frame perimeters in the sun, floor joints at doorways and anything that gets wet every day.
Many businesses in towns like Fleet work from older buildings that have been altered more than once. Where old meets new there are junctions between brick, render, timber and aluminium, and each needs the right sealant, in a colour that suits the frontage.
We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.
- Location
- Fleet (GU51, GU52, GU10)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
What sets the cost
The price varies from site to site. It mainly depends on:
- Distance, for remote addresses
- Induction, permit and paperwork requirements
- Quantities, in metres or numbers
- Whether the work must be split into stages
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.
Before you send an enquiry
Whether it’s one area or a whole building, these details speed things up:
- Any specification or named product
- Asbestos survey details if the building is older
- The type of building and who uses it
- Your programme or deadline
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, phone 01277 525 020 or send photos by email.
Nearby places to Fleet
More services for Fleet
Should maintenance staff do it?
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
Do you need commercial sealant contractors in Fleet?
No sealant joint is permanent. Its life comes down to movement, UV and weather, how it’s cleaned, how much traffic passes it and what was used in the first place. In commercial buildings those factors tend to act together, so periodic inspection matters more than any date on a schedule.
Clients usually get in touch after noticing something like this:
- Shrunken sealant along kitchen worktops and splashbacks
- Hardened, chalky sealant on south-facing or exposed elevations
- Movement joints packed with grit and debris
- Frame mastic that has hardened and come away from the wall
If you have premises on more than one site, say at Hart Shopping Centre and Potters Industrial Park, one contractor and one quote can cover both.
What your quote should include
- Whether primer will be used where the manufacturer specifies it
- Their pre-qualification and accreditations
- What level of public liability insurance do they hold?
- What the guarantee covers, and for how long
What the job involves on each surface
Washrooms and toilets
Around WCs, urinals, vanity tops, IPS panels and cubicles, sealant is wet most of the day. We cut out mouldy or split beads and reseal in anti-mould sanitary silicone.
Window and door perimeters
Where frames meet the surrounding wall, sealant is the weather line. Failed perimeters are cut out and cleaned, backing goes into deeper gaps, and the joint is resealed with a low-modulus neutral-cure silicone or another suitable product.
How a job runs
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Most work in Fleet is one building at a time: a school, a unit, an office or a block. Your photos, drawings or a site visit come first, followed by a fixed quote.
- We begin with whatever information you have, whether that’s photographs, a drawing or a list of locations, or we arrange a site visit.
- Next comes a diagnosis and a fixed quote.
- Site hours, access windows and the order of areas are agreed before we start.
- We strip the failed bead and prepare both faces of the joint.
- We fit backing to the right depth, prime where specified and lay the new bead.
- We walk the completed areas with you and sign them off under the 12-month guarantee.
Preparing the site
- Let building users know which areas are affected
- Have the specification and drawings to hand
- Make sure the joints can be reached
Ask for a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photos and a description will do.
Advice
Frontages, fit-outs and joints in Fleet
At least three named trading, business or retail sites lie within about 3 miles of Fleet. Units on sites like these change tenants and get refitted, and each refit leaves joints to seal, often in a colour the occupier specifies. Fleet lies roughly 36 miles out from central London. This part of the South East is dense with business parks and out-of-town offices. Multi-site occupiers here often want one sealant contractor across all their buildings.
Units at retail parks like Hart Shopping Centre (0.5 miles north of Fleet) change hands and get refitted, with new joints at every frontage. For premises near Fleet station (1.2 miles north of Fleet), footfall is part of the plan: work is phased so shops and offices keep trading.
Fleet is about 13 miles south-east of Reading, in Hampshire. We send applicators to Fleet for sealant joints, handled exactly as we handle every other area. Across Hampshire, 723 places are covered, including Fleet. We also cover Reading, some 13 miles away.
Postcode districts covered here: GU51, GU52 and GU10. We cover commercial and managed buildings on Church Road, Durnsford Avenue and Hankins Court. You will find Fleet on or near the A323 and A3013. Just outside Fleet, we also work in Church Crookham (1 mile south-east), Crookham Village (1 mile west), Elvetham Heath (1 mile north-west), Dogmersfield (2 miles west) and Elvetham (2 miles north-west). Bigger towns within reach include Basingstoke (11 miles west), Farnborough (3 miles north-east), Aldershot (4 miles south-east), Alton (10 miles south-west), Yateley (4 miles north) and Tadley (14 miles north-west). As one of the bigger centres in Hampshire, Fleet has a broad mix of commercial, public and industrial buildings.
Landmarks near Fleet
Recent enquiries here include premises near Court Moor School, The Prince of Wales pub and School, among other places. Fleet’s nearest station is Fleet station, about 1.2 miles north. Other landmarks nearby include Royal Army Dental Corps Historical Museum (3.9 miles east) and Fleet Community Hospital (1 mile north-west). The countryside around Fleet includes Fleet Pond Nature Reserve and Hitches Hill.
Why act early in Fleet
On many buildings the mastic was done by whichever trade was on site. A specialist applicator takes care of product choice, joint depth and preparation, and they’re where most failures begin. You notice the difference years later, not on the day. Many buildings in towns like Fleet have been extended or altered, and joints where old meets new tend to fail first. Renewing them before water gets in protects the fabric.
The product called for affects the cost, and so does the preparation. Access, phasing and site requirements come into it too.
Why clients in Fleet choose us
- A range of standard colours, depending on the product
- Joints cleaned back to sound surfaces
- Constructionline member for supplier checks
- Colour options checked against the specified product
Take a look at our cost guide and our accreditations.
Questions about Fleet
Does your area include sites such as Hart Shopping Centre, near Fleet?
Yes. We cover Fleet and the area around it, including industrial estates, business parks and retail parks such as Hart Shopping Centre. Send details of the unit and the work through our quote form for a quick quote.
Will our hotel in Fleet need to close for the work?
Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. We agree the order of rooms and the timings with you before we start.
What about asbestos in old mastic?
It can, on some older buildings. So we check the register first and stop work on anything suspect until it’s tested. HSE guidance on asbestos is a useful reference.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
How long before the joints can be used?
We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.
Is the old sealant taken out first?
The old bead is stripped out first. Then the joint is cleaned, primed where the maker specifies, backed to depth and resealed.