Turnkey Apartment Renovation
Complete apartment renovation that can include wall insulation as part of the project.
Interior Wall Insulation
Interior Wall Insulation
in Valencia
Professional interior wall insulation in Valencia for apartments and houses without built-in thermal insulation in the external walls — especially relevant for older Valencia housing stock.
We fit thermal insulation boards or systems to the inside face of external walls and finish with plaster or drywall, so your home stays cooler in summer and warmer in winter.
Internal Wall Insulation
Interior Wall Insulation for Homes in Valencia, Spain
Looking for interior wall insulation in Valencia, Spain? squaremeter Reformas installs internal thermal insulation on the external walls of apartments and houses — from a wall assessment and material selection through to fitting the insulation boards and final finishing. This is especially relevant for Valencia properties built without today's thermal insulation standards: these walls heat up and hold that heat in summer, and lose it quickly in winter.
- ✓ Interior insulation of external walls in apartments of any size
- ✓ Lower heat loss in winter and less overheating in summer
- ✓ Ideal for older Valencia buildings without wall insulation
- ✓ No changes needed to the building's facade
- ✓ Transparent insulation quote before work starts
Interior Wall Insulation in Valencia
From Wall Assessment
to Final Finish
Step 1
Initial
Consultation
We discuss which walls face the street or a courtyard, any damp patches or cold spots, your budget and timeline.
Step 2
Property
Inspection
We check the condition of the walls, the thickness and material of the existing masonry, and look for cracks or cold bridges.
Step 3
Clear Quote
You receive a detailed quote for insulation materials, wall area and the finishing method.
Step 4
Planning &
Preparation
We choose the right insulation system, protect furniture and flooring, and prepare the walls for installation.
Step 5
Insulation
Installation
We fix insulation boards to the external walls, treating every joint and connection to window and door reveals.
Step 6
Finishing &
Handover
We complete the plaster or drywall, painting, final cleaning and hand over the finished room.
Request a Wall Insulation Quote
Turnkey wall insulation management. Clear quotes.
Coordinated finishing.
Coordinated finishing.
One Coordinated Project
What's Included in Interior Wall Insulation in Valencia
What a Full Internal Insulation Project in Valencia Includes
Interior wall insulation is not just fitting an insulation board — it's a full cycle of work from wall assessment through to painting and the smallest finishing details. The goal is a finished, neatly decorated room, not simply a wall covered in insulation.
- ✓ Wall assessment and identifying cold bridges
- ✓ Preparing and cleaning the wall surface
- ✓ Fitting insulation boards to external walls
- ✓ Installing a vapour barrier layer where needed
- ✓ Sealing joints and connections
- ✓ Insulating window and door reveals on external walls
- ✓ Drywall cladding or plastering
- ✓ Final filling and preparation for painting
- ✓ Painting or decorative wall finishing
- ✓ Fitting skirting boards and trim after insulation
- ✓ Relocating sockets and switches where needed
- ✓ Cleaning and handover of the finished room
Wall Insulation for Apartments in Valencia
Insulating Older Apartments
and Homes Without
Wall Insulation
Interior wall insulation is especially in demand in apartments where the external walls are a single layer of solid masonry with no cavity or insulating layer. We help make this kind of housing comfortable all year round — without touching the facade and without lengthy sign-off from neighbours.
- ✓ Insulating apartments in older buildings
- ✓ Insulating corner apartments and top-floor flats
- ✓ Lower air conditioning running costs in summer
- ✓ A more comfortable temperature in winter without extra heaters
- ✓ Fixing cold walls and condensation problems
- ✓ Preparing a property for sale with improved energy performance
Cooler in Summer,
Warmer in Winter
Warmer in Winter
A Complete Approach to Energy Efficiency
Wall Insulation, Soundproofing and New Windows — One Solution
Why These Works Are Often Done Together
Interior wall insulation solves heat loss through the walls, but real comfort in a home comes from several factors together. Soundproofing uses a similar multi-layer build-up on the same walls, and window and door replacement closes another weak point — old frames and gaps around doors let out a surprising amount of heat. If you're planning a major renovation, it's worth considering all three together: it saves time on stripping old finishes and preparing the walls, which is nearly identical for insulation and soundproofing.
- ✓ Insulation reduces heat loss through the external wall structure
- ✓ Soundproofing reduces street and neighbour noise on the same walls
- ✓ Window and door replacement closes another source of draughts and heat loss
- ✓ Doing the work together saves time on preparation and finishing
Renovation Company in Valencia
English-Speaking
Wall Insulation Team in Valencia
squaremeter Reformas is a renovation company in Valencia that focuses on clear communication, professional finishing and reliable service for local and international clients. We explain the difference between insulation materials in plain terms, talk through insulation thickness options, and provide a clear quote before work begins.
- English-speaking team
- Experience insulating walls in Valencia's older housing stock
- Clear communication
- Detailed explanation of materials and insulation options
- Specialists in thermal insulation and finishing
- Work with apartments, houses and rental properties
- Support for foreign property owners
💬
English-
speaking team
☎
Clear
communication
📋
Detailed work
explanation
Renovation Company
in Valencia
▣
Thermal insulation
specialists
🏠
Local Valencia
experience
✈
Support for
foreign owners
Interior wall insulation Valencia · thermal insulation and finishing · English-speaking team
Local & International Clients
Interior Wall Insulation Across Valencia
A Comfortable Home for Local and International Clients
If you're looking for interior wall insulation in Valencia, our team can help with thermal insulation and finishing for apartments and houses across the area. We insulate walls in Valencia, Mislata, Paterna, Torrent, Burjassot, Alboraya, Manises, Quart de Poblet, Xirivella and Paiporta, combining local experience with clear English communication for owners, investors and international clients.
Other Major Renovation Services
Services Often Paired With Wall Insulation
Interior wall insulation rarely stands alone — see what else is often carried out alongside it as part of a major renovation.
Soundproofing
Noise reduction from the street and neighbours, using a similar multi-layer wall build-up.
Window & Door Replacement
Energy-efficient windows and doors that reduce heat loss alongside wall insulation.
Understanding the Cost
Interior Wall Insulation Prices in Valencia
What Affects the Final Insulation Cost?
The cost of interior wall insulation in a Valencia apartment depends on the area of wall being insulated, the type of insulation material chosen, the required layer thickness, the finishing method (plaster or drywall) and the condition of the existing walls.
Area of walls to insulate
Number of external walls
Type of insulation material
Thickness of the insulation layer
Finishing method
Condition of existing walls
Removal of old plaster
Insulating window and door reveals
Relocating sockets and switches
Ceiling height
Complexity of the property
Clear Process, Local Experience
Why Choose squaremeter Reformas for Interior Wall Insulation in Valencia?
A Clear Process, Quality Materials and Local Experience
- ✓ We work on wall insulation projects in apartments and houses of any age
- ✓ We understand the older, uninsulated housing stock typical of Valencia
- ✓ We give clear explanations of material choices before work begins
- ✓ We can help English-speaking clients
- ✓ We account for insulation thickness and the loss of usable floor area
- ✓ We aim for a clean, professional finish
- ✓ We provide a clear quote for the agreed scope of work
Local Insight
Why Interior Wall Insulation Matters in Older Valencia Buildings
A large part of Valencia's housing stock built before the 1980s — and right up until Spain's Código Técnico de la Edificación (Technical Building Code) introduced modern insulation standards in 2006 — was built with a single layer of brick and no thermal insulation in the external walls. In summer these walls heat up and keep releasing that heat into the apartment long after sunset, which is why the air conditioning ends up running for hours longer than it should. Insulating the facade from the outside is rarely an option for a single apartment, because the facade belongs to the comunidad de propietarios — the community of owners that jointly manages the building — and any change to it needs sign-off from the whole building. Interior wall insulation, carried out entirely inside your own apartment, remains the practical option that doesn't depend on your neighbours' agreement.
Client Reviews
Real Feedback from Our Clients
Read all reviews on Google Maps →
★★★★★
Insulated the two external walls in our top-floor flat before the first real heatwave — the difference in how long the AC runs is night and day.
★★★★★
They were upfront that our corner apartment needed insulation on both external walls, not just one, to actually fix the cold spots in winter. Glad we listened.
★★★★★
Neat finish, no mess left behind, and they explained exactly how much wall thickness we'd lose before agreeing on the material.
Interior Wall Insulation
FAQ
How many centimetres of wall or floor space does interior insulation take up?
On average, a full insulation system with finishing (insulation board plus plaster or drywall) adds 4 to 10 cm, depending on the material and thickness required. For a 15-20 m² room, that usually means losing under 1 m² of usable floor area — during the inspection we calculate the exact thickness for your specific wall to balance thermal performance against keeping the space.
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How much does wall insulation actually reduce air conditioning and heating bills?
The effect depends on the existing condition of the walls, the apartment's orientation and how many external walls it has, but in uninsulated apartments in Valencia's older housing stock, insulation typically reduces how hard and how long the air conditioning has to run in summer, and cuts the need for heaters near external walls in winter. We won't promise a specific euro figure in advance, but we can give you a realistic idea of what to expect during the consultation.
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Do I need comunidad de propietarios approval to insulate walls from the inside?
In most cases, no. Interior insulation is work carried out entirely within the boundaries of your own apartment and does not affect the facade or any shared elements of the building, so formal approval from the community of owners is usually not required — unlike external facade insulation, which changes the building's appearance and does require a community vote. We check for any unusual cases, such as a protected facade, during the inspection.
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How long does interior wall insulation take in an apartment?
Insulating the external walls of one or two rooms usually takes a few days to around one and a half to two weeks, including fitting the insulation, finishing with plaster or drywall, and painting. Insulating an entire apartment, or combining it with soundproofing and window replacement, takes longer — we confirm the exact schedule after inspecting the property.
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What determines the price of interior wall insulation?
Price depends on the area of wall being insulated, the insulation material and thickness chosen, the finishing method (plaster or drywall), the condition of the existing walls, and whether window and door reveals need extra insulation or sockets need relocating. After the inspection we provide a fixed quote for the full agreed scope of work.
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M2
Start Interior Wall Insulation
in Valencia
Tired of a hot apartment in summer or cold walls in winter? Contact squaremeter Reformas and tell us about your property. We will assess the walls, explain which materials will genuinely help, and prepare a clear insulation quote.