
Facade Sealing contractors in Gundleton
Sealant work in Gundleton for main contractors, managing agents and facilities managers: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.
- Damp patches beside frames after rain
- Unsightly perimeter sealant on a visible elevation
- Old perimeter mastic that has dried out
Facade sealing for businesses in Gundleton
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How the job changes by surface
Precast concrete panels
Joints between precast panels carry real movement. We use a sealant with the right movement capability, set over backing rod with primer where the product requires it.
Brick and stone facades
Stone can absorb plasticisers from the wrong sealant. The specified stone-compatible sealant is what we use, and mask the edges carefully.
Facade sealing for commercial buildings in Gundleton
Most facade joint failures trace back to the joint, not just the sealant. The width has to suit the expected movement and the sealant’s movement capability, and closed-cell rod sets the depth, keeping the bond to two faces, often at around 2:1 width to depth, as the manufacturer advises. If you have previous reseals run over old sealant and weathered joints at frame-to-structure perimeters, we can put it right. Searching for sealant specialists in Gundleton? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Construction in and around smaller places such as Gundleton is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.

- Place
- Gundleton (SO24)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Our process
Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and move on in phases so staff and visitors can carry on around us. Smaller jobs around Gundleton can be grouped with others nearby. A fixed quote is given before anything starts.
- We look at the joints, the drawings and the access before pricing.
- Failed sealant is cut out along its full length.
- Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
- Closed-cell rod fixes the depth, and the sealant grips two sides only.
- The new sealant goes in and is tooled firmly onto both faces.
- We walk the finished joints with you before handing over.
Before we start on site
- Point out parking and an unloading spot
- Send any specification or drawings in advance
- Tell us which areas need to stay in use
Ask for a quote
Need a figure for a tender or a budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, call the office on 01277 525 020 or email us.
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New build and refits around Gundleton
At about 52 miles from central London, Gundleton is within reach of the capital. Towns within reach of London tend to keep building, from flats to offices and schools, and each scheme needs its mastic sealed to programme. Gundleton is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, so external mastic is timed for workable conditions and agreed with the site manager.
For contractors at a school such as Perins School, sealing has to be finished before term starts. With historic properties like Hinton Ampner House, 4 miles south of Gundleton, in the area, refurbishment work often meets old masonry that needs compatible sealants. New units and refits on sites such as Lower Soldridge Business Park (2.3 miles north-east of Gundleton) need their panel and perimeter joints sealed to the specification.
Gundleton is about 7 miles south-west of Alton, in Hampshire. Gundleton sits inside our coverage and the rest of Hampshire, with the same fixed quotes and 12-month guarantee as everywhere else. Gundleton is one of 723 places in Hampshire on our list. Southampton is covered too, some 17 miles away.
Business premises anywhere in SO24 are within our area for facade joints. Streets here include Goscombs Lane and Bighton Lane, and sites on any of them can send details for a fixed quote. Just outside Gundleton, we also work in Bishop's Sutton (1 mile south-west), New Alresford (2 miles west), Bramdean (3 miles south), Hinton Ampner (4 miles south) and Cheriton (4 miles south-west). Further afield, our area takes in Basingstoke (12 miles north), Winchester (9 miles west), Eastleigh (13 miles south-west), Horndean (14 miles south), Chandler's Ford (14 miles south-west) and Alton (7 miles north-east).
Near you in Gundleton
We work on buildings around Three Horseshoes Public House, among other places. Nearby you will also find Barton Castle (2.9 miles north). Not far away are Shutts Copse and Red Hill.
When something else is needed
A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be one of these:
- Installing or repairing glazing systems
- Render or concrete edges that have broken away
- Damp caused by condensation inside the building
If you are not sure, just give us a call on 01277 525 020 or use the quote form and we will give you a straight answer.
Where we work in Gundleton
- Stone and brick facade joints
- Coping and flashing joints
- Shopfront frames
- Cladding panel joints
- Window and door perimeters
- Perimeter joints where frames meet the structure
What affects the price in Gundleton
We price every job individually. The things that drive the figure:
- Quantities, in metres or numbers
- Travel to remote or island sites
- Access and working height
- Whether old sealant has to be cut out first
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.
Sending details for a quote
We can often quote from photographs and a few details. Please tell us:
- Where the site is, with the postcode
- What the building is and how it’s used
- Any specification or named product
- Approximate linear metres or a joint schedule
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or speak to us on 01277 525 020 or email the details over to discuss it first.
Maintenance after handover
For the best life from the joints:
- Confirm the survey covers external sealants in older buildings
- Insist on a full cut-out when joints are renewed
- Avoid harsh cleaners on facade sealant
- Keep sills, gutters and drainage paths clear
After heavy weather, check vulnerable elevations for signs of water inside. An early report usually means a small reseal rather than a bigger repair.
Planned resealing is cheaper than reacting to leaks. Inspect regularly and reseal sections as they start to fail.
Places near Gundleton
Also in Gundleton
Your questions answered
Will you fit the mastic around our build programme in Gundleton?
Yes. The mastic is planned around your key stages. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.
Will you take on work at estates like Lower Soldridge Business Park, close to Gundleton?
Yes. Estates, retail parks and business parks around Gundleton, Lower Soldridge Business Park among them, are all within reach. Photos and a short description are enough for a first look.
How do you choose the sealant?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
Can staff carry on working while you’re here?
Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.
Does weather matter for sealant work?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so external work may be moved if conditions aren’t right. Indoors, the weather is rarely a problem.
How is access to upper-level joints handled?
That comes down to the access arranged for the job. When you ring 01277 525 020 or email drawings and photos, describe the access.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and we will price the work to it, flagging anything that needs clarifying.
Site staff or a sealant specialist?
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.