Hampshire · England
External & façade joints in Hook, Hampshire
External mastic across Hook and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Panel joints letting water in
- Joints with sealant missing in places
- Moss and dirt in joints with no sealant left
Do you need external mastic in Hook?
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
Any of these means the joints need attention:
- Failed sealant between panels on a façade
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
- Hard, crazed mastic that has stopped moving
In the older streets around St John the Evangelist, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What to look for in a quote
- Whether all the old sealant comes out first
- How much experience the applicator has
- How hidden problems are handled
- What the quote includes, VAT included or not
How we handle external mastic in Hook
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We strip the joint back and start again. If you are dealing with hard, crazed mastic that has stopped moving and panel joints letting water in, we can help.
Around Hook, garages, outbuildings and extensions all add to the joints on the outside of a home. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
Big or small, it’s backed by our one-year guarantee in Hook and across Hampshire.
- Location
- Hook (RG27)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Nearby places to Hook
Other services in Hook
Questions from Hook
Do you work for landlords with property near Hook station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Do you cover smaller places like Hook?
Yes, Hook is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Can you do several jobs on one visit?
Of course. Doing several areas at once is normally more efficient.
Do you seal joints where cladding meets other materials?
Yes. Different materials move at different rates, so the joint between them must be flexible. The sealant is matched to both sides.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
How do you reach high-level joints?
It depends on the building. Tell us the height, the number of joints and what’s below them, and we’ll confirm what access is needed.
Is it OK to fill a movement joint with cement?
No. Rigid materials cannot move with the wall, so the joint stops doing its job. Where a joint has been mortared, it can often be raked out and sealed properly.
What the job involves on each surface
Render joints
Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Send us any details you have about the façade.
Landlords, agents and businesses in Hook
If you manage several properties in or around Hook, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
We also work for property managers and facilities teams in Hook and across Hampshire. We can quote a run of properties together, and we are fully insured for the work.
Why it’s worth doing now in Hook
Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. In a smaller place like Hook, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Why choose Mr Mastic in Hook
- Rated 4.9 stars on Google
- Full insurance on every job
- Old sealant always removed completely
- Every job guaranteed for a year
See our cost guide and customer reviews.
What external mastic looks like in Hook
Historic houses like Stratfield Saye House (about 4.8 miles north) are a reminder that the area around Hook has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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.
If you look after a building such as Hook Junior School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you let a flat or house near Hook station, split movement joints are easy to miss on a rental until damp shows inside.
Hook is about 5 miles west of Fleet, in Hampshire. From the centre of Hook to the outskirts, external mastic is available for homes and businesses alike. Hook is one of 683 towns and villages in Hampshire we cover for external mastic. We also work in Reading, around 11 miles away.
Every address in RG27 is covered for external mastic, from the main roads to the quietest streets. That includes homes and businesses on London Road, Station Road and Rookswood Close. You will find Hook on the B3349, which makes it straightforward to reach with everything needed for external mastic. Neighbouring places we cover for external mastic include Hook Common (1 mile south-west), Murrell Green (1 mile east), Warnborough Green (1 mile south), Newnham (1 mile west) and Nately Scures (2 miles south-west). Larger places within reach include Basingstoke (6 miles west), Farnborough (8 miles east), Fleet (5 miles east), Aldershot (9 miles east), Alton (9 miles south) and Yateley (7 miles north-east).
Local landmarks in Hook
Around Hook, our work takes us to homes and buildings near Robert May's School and the streets around them. There’s a railway station in Hook itself: Hook station. A little further out are Odiham Castle (1.6 miles south) and West Green House Agricultural Museum (1.6 miles north-east). For a walk, there’s Tundry Hill and Dogmersfield Lake.
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How we quote for external mastic
Your quote is based on your job. We look at:
- The old material and how stubborn it is
- How easy the joints are to reach
- Which sealant suits the joint
- The number and length of the joints
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The address or postcode of the job
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
- The problem you’ve noticed
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or email us.
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Parking around Hook is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Keep children and pets away from the work area
- Clear items away from the joints we are working on
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or drop us an email and describe the job.