Surrey · England
External Mastic in Millbridge
External mastic in Millbridge from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Moss and dirt in joints with no sealant left
- Movement joints with cracked, split or missing sealant
- Cracked joints where brick meets render or frames
About our external mastic in Millbridge
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the joint does not stand out. We work on joints between brick and frames, copings & trims and concrete & block, and common reasons people get in touch are moss and dirt in joints with no sealant left and rain getting behind render or cladding at a joint.
Around Millbridge, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
We stand behind the work with a 12-month guarantee, so you are covered after we’ve gone.
- Place
- Millbridge (GU10)
- Region
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Subsidence or other structural problems
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp that is not coming from the joint
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Concrete & block
Towns and villages near Millbridge
Other services in Millbridge
Leave it or put it right?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. Where a wall is exposed, as many are in small places like Millbridge, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is generally more efficient than separate visits. We will send you a clear quote for the lot.
Why choose Mr Mastic in Millbridge
- Any old sealant cut out fully, not covered over
- Sanitary silicone with an anti-fungal additive in wet areas
- We’re fully insured
- Sealant colour chosen to suit
Read how sealant jobs are priced and customer reviews.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a handful of joints, longer for a whole elevation and we leave things clean and tidy. In a small place like Millbridge, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- Clear items away from the joints we are working on
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Related advice
Different surfaces, different methods
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What external mastic looks like in Millbridge
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Farnham Castle (about 3.1 miles north) nearby, there’s older building stock in the area around Millbridge as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Letting a property close to Farnham station? Then split movement joints are easy to miss on a rental until damp shows inside. Homes close to Church of St Mary the Virgin include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Millbridge is about 2 miles south of Farnham, in Surrey. We carry out external mastic for homes and businesses in Millbridge and the surrounding area. We cover 395 towns and villages across Surrey, large and small. There’s also a page for Reading, about 21 miles away.
Here we cover the GU10 postcode area for external mastic. Streets in the area include Shortfield Common Road, The Reeds Road and Fifield Lane. Neighbouring places we cover for external mastic include Shortfield Common (1 mile west), Frensham (1 mile south), Tilford Reeds (1 mile north-east), Lower Bourne (2 miles north) and Tilford Common (2 miles east). Further out, we also cover Guildford (11 miles north-east), Woking (14 miles north-east), Camberley (11 miles north), Frimley (10 miles north), Haslemere (7 miles south-east) and Cranleigh (14 miles east).
Near you in Millbridge
In Millbridge, that means homes and buildings near Edgeborough School, Weydon School and Underdown nature reserve, among other places. The nearest railway station is Farnham station, roughly 2.6 miles north of the centre. Other landmarks nearby include Museum of Farnham (2.7 miles north) and Farnham Castle (3.1 miles north). Not far away are Culverswell Hill and Farnham Heath.
What affects the cost of external mastic
For a quick quote, just ask. The main things that affect it are:
- Any working-time requirements on site
- Access and height
- The old material and how stubborn it is
- The product the joint needs
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Whether it has been sealed before
- Whether it’s a home or a business
- The address or postcode of the job
- What’s wrong with the joints now
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
Do you need external mastic in Millbridge?
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Common reasons people contact us include:
- Gaps where render, brick and frames meet
- Movement joints filled with mortar instead of sealant
- Weeds or debris growing in open joints
- Sealant pulling away from one side of the joint
Schools such as St Mary's CofE Aided Infant School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
What your quote should include
- Whether you can choose the colour
- Who turns up on the day
- Whether all the old sealant comes out first
- How hidden problems are handled
Your questions about external mastic in Millbridge
Do you cover Millbridge for external mastic?
Yes, Millbridge is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
I let a flat near Farnham station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move, and it should be sealed with a flexible sealant.
How long does external mastic last?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges and have them redone then.
What does external mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Can a movement joint be filled with mortar?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose, and the wall may crack nearby. We will reseal it with a flexible sealant.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.