Major Renovation of Old Apartments in Varna in Dobrich
Complete transformation of old apartments – panel, EPK, and brick, built before 1990.
About this service
Complete transformation of old apartments – panel, EPK, and brick, built before 1990. Infra Remonti EOOD solves problems with crooked walls, dangerous installations, and outdated materials. We offer full replacement of plumbing and electrical systems, straightening of walls and floors, and modern conversions. Prices for a complete renovation start from 280 €/m² including labor and basic materials. Expected duration for a 65 m² dwelling is 70-90 days. Get a 15-year written warranty for completed works.
За обекти в Добрич планираме работата според открития терен, ветровото натоварване и достъпа в райони като Балик, Дружба, Изгрев, Рилци. Офертата отчита реалните условия на място, нужната подготовка и устойчивостта на изпълнението във времето.
What we deliver and which problem we solve
What we deliver
Infra Remonti EOOD specializes in the comprehensive renovation of old residences, focusing on apartments built between 1950 and 1990. Our work covers all types of buildings from this era – panel blocks (series Bs-69-S, Bs-2-64, etc.), EPK (large-panel formwork), and old brick cooperatives. We don't just do cosmetic repairs; we perform a full structural and installation rehabilitation. This includes demolition to the base, removal of old and compromised materials, replacement of all engineering systems (electrical, plumbing, sewage, heating, ventilation) and rebuilding according to modern safety and energy efficiency standards. Our team consists of qualified structural engineers, licensed electricians, and experienced plumbing specialists who work with state-of-the-art equipment, including channel cutters with dust extraction and laser levels for precision. We operate primarily in Varna and Burgas, where we apply specific solutions against corrosion caused by salty sea air, using higher-grade protective coatings and stainless steel fasteners. In Sofia and Plovdiv, we encounter older brick buildings, often with wooden beams, where we conduct a thorough assessment of the load-bearing structure before any interventions.
Which problem we solve
The main problem we solve is the hidden risks and functional inadequacy of the old housing stock. Soviet-era apartments suffer from inherent defects: uneven walls and floors with deviations up to 10 cm, making the installation of new furniture and flooring impossible without prior correction; original aluminum two-wire electrical installations, incapable of handling the consumption of modern appliances and a primary cause of fires; corroded steel and cast-iron plumbing pipes, leading to frequent leaks, low pressure, and contaminated water. If these problems are not fundamentally addressed, owners are condemned to constant 'patchwork' that in the long run costs more than a complete renovation. Ignoring old electrical installations can lead to short circuits and fires. Unreplaced plumbing is a ticking time bomb, threatening not only your apartment but also those of your neighbors with flooding. Poor ventilation, especially in panel bathrooms without windows, is a prerequisite for mold and health problems. We eliminate these risks by creating a completely new, safe, and functional environment, protected by a 15-year warranty, and increasing the market value of the property by over 30-40%.
Are your walls crooked and installations from the last century?
Seek a professional solution. Call +359 88 654 0238 for an inspection.
What is included in the renovation of an old apartment?
Our service is comprehensive and covers all critical stages for the complete renewal of your home.
Detailed Structural Assessment
Before demolition, our engineer conducts a thorough inspection. We check for cracks in the panels, rebar corrosion, and the condition of load-bearing elements. We identify all load-bearing walls and those that can be safely removed. This assessment forms the basis for developing a safe and effective restructuring plan.
Complete Demolition and Waste Removal
We remove all old flooring (linoleum, mosaic), wallpaper, old plaster, non-load-bearing partition walls (masonry, drywall), old door and window frames. All construction waste, which often exceeds 10 tons for a three-room apartment, is collected in sacks and transported to a specialized landfill in accordance with regulatory requirements.
Replacement of Entire Electrical Installation
We build a completely new three-wire copper installation from the apartment's distribution board. This includes laying cables in corrugated pipes, new junction boxes, outlets for sockets (3x2.5 mm² cable), lighting (3x1.5 mm²), and separate circuits for powerful appliances (boiler, cooker). We install a new distribution board with automatic circuit breakers and residual current device (RCD).
Replacement of Entire Plumbing Installation
We replace old corroded pipes with new polypropylene (PPR) pipes for hot and cold water and PVC pipes for sewage. We replace vertical risers within the apartment. We build new outlets for the sink, toilet, shower, washing machine, and dishwasher according to the new interior design. The system is pressure tested for 24 hours before closing.
Straightening of Walls and Ceilings
One of the most labor-intensive stages. Walls are primed with contact primer for better adhesion. By installing guide rails ('mothers') and applying gypsum or lime-cement plaster (e.g., Knauf Rotband, Baumit Ratio) in several layers, we correct deviations up to 7 cm and achieve perfectly smooth and plumb surfaces, ready for skimming.
Pouring New Floor Screed
After removing the old flooring down to the slab, we clean the base and prime it. We pour a new reinforced cement screed with a thickness of 5-7 cm or a self-leveling screed for smaller unevenness. This provides a perfectly level and strong base for laying modern floor coverings such as parquet, laminate, or granite tiles.
Finishing and Insulation around New Joinery
After installing new joinery, large gaps and damaged areas often remain. We restore these zones by filling cavities with foam, installing external and internal insulation (XPS) to break the thermal bridge, and forming perfect edges with plaster. This is critical for energy efficiency and preventing condensation.
Balcony Repair and Waterproofing
Balconies in old buildings are often in poor condition. We check the condition of the floor slab, remove the old flooring, make a new screed with a slope for drainage, lay elastic waterproofing (e.g., SikaLastic-152) with a reinforcing mesh at the corners and floor, and only then install the new granite tiles.
Construction of New Ventilation System
Old ventilation shafts in panel blocks are often blocked or non-functional. If necessary, we build new autonomous ventilation for the bathroom and kitchen with PVC ducts and a powerful fan with a flap that exhausts humid air directly outside. This is the only effective solution against mold and dampness.
Sound Insulation Installation
Upon client request, before pouring the screed or before closing the walls with plasterboard, we install specialized sound insulation membranes or high-density mineral wool panels (70-90 kg/m³). This significantly reduces the transmission of impact and airborne noise from and to neighbors – a major problem in panel buildings.
Our 8-Step Work Process
We follow a strict technological sequence to guarantee quality and predictability at every stage.
- 1
1. Inspection, Consultation, and Quotation
Our technical manager visits the site free of charge. We take measurements and discuss your desired alterations and functionalities. We identify potential problems such as load-bearing walls or weak areas. Based on this, we prepare a detailed offer with a fixed price and deadlines, which you receive within 3 business days.
- 2
2. Contract and Start of Demolition
After accepting the offer, we sign a contract detailing all activities, prices, and the 15-year warranty. Upon receipt of the 30% advance payment, our team begins with the full demolition. We secure the site, cover common areas, and begin the systematic removal of everything old, disposing of waste daily.
- 3
3. Laying New Electrical and Plumbing Routes
This is the 'dirty' stage. Using professional channel cutters with dust extraction, we cut channels in the walls and floor for new pipes and cables according to the approved design. We lay the corrugated pipes for the electrical installation and PPR pipes for the plumbing. A 24-hour pressure test is performed on the plumbing system.
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4. Rough Construction Works and Plastering
At this stage, all necessary masonry work is carried out – building new partition walls (most often with Ytong) and closing old openings. Then, the straightening of walls and ceilings with plaster begins. We work with 'mothers' to achieve perfectly level surfaces. This stage requires technological drying time.
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5. Floor Screeds and Waterproofing
Once the plaster has dried, we move on to the floor. We pour reinforced cement screed, adhering to the design levels. In wet rooms (bathroom, toilet), we apply waterproofing membranes and tapes at the corners. The screed requires a minimum of 28 days to fully dry before laying final floor coverings.
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6. Skimming, Painting, and Finish Flooring
After the complete drying of the bases, the fine work begins. The walls are skimmed with gypsum skim coat (e.g., Knauf F2) to perfect smoothness, sanded, and primed. Latex paint is applied in selected colors. We install granite tiles, terracotta, laminate or engineered parquet. This is the stage where the apartment begins to take on its finished appearance.
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7. Installations and Fittings
We install interior doors. In the bathroom, we install sanitary ceramics – toilet bowl (concealed cistern), sink, shower system. In the kitchen, we connect appliances. Throughout the apartment, we install switches, sockets, light fixtures. We commission all systems and test them.
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8. Final Cleaning and Handover of the Site
After completing all activities, we perform a professional final cleaning of the entire apartment. The property is handed over completely ready for occupancy. We conduct a thorough inspection with you, sign a handover protocol, and provide you with the documents, including our written 15-year warranty.
Are you ready to transform your old apartment into a modern and secure home?
Contact us at +359 88 654 0238 to start today.
Why choose Infra Remonti for your old apartment renovation?
Our approach is based on engineering thought, technical precision, and complete transparency.
- We understand in detail the 'panel', 'EPK', and 'old brick' constructions, which allows us to avoid fatal mistakes with load-bearing walls.
- Our licensed electricians replace dangerous aluminum installations with copper, according to all modern fire safety standards.
- We use professional channel cutters with dust extractors, minimizing dust during renovation.
- Our standard procedure includes a 24-hour pressure test of the new plumbing system before closing it in the walls, eliminating the risk of hidden leaks.
- We provide a 15-year written warranty for labor and materials on electrical and plumbing installations, plastering, and waterproofing - the longest on the market.
- We work with a fixed price by contract. The agreed price is final, with no hidden fees or unforeseen costs for the agreed scope.
- In Varna and Burgas, we always use fasteners with anti-corrosion coating and facade paints resistant to salty air.
- We create a 3D visualization of the proposed conversion so you can see your new security and layout before we even start.
- We handle all communication with the 'Owners' Association' and neighbors to ensure a smooth workflow.
- Payment with us is linked to progress: 30% advance, 40% after completion of electrical, plumbing, and plastering, and 30% upon final acceptance.
- For every wall removal, even non-load-bearing, we provide an opinion from a structural engineer on the safety of the intervention.
- We guarantee floor flatness up to 2 mm deviation per 2 linear meters, which is critical for the trouble-free installation of any flooring.
Калкулатор за Фасадни Ремонти
Изчислете ориентировъчна цена за реновиране на фасада — за 60 секунди.
Какъв тип работа желаете?
Изберете най-близкия вариант – ще уточним детайлите на място
Don't postpone your safety and comfort.
One consultation can save you thousands in the future. Call +359 88 654 0238.
Materials We Use for Long-Lasting Results
We do not compromise on the quality of materials used because they are the backbone of every successful renovation.
Copper Electrical Cables (SVT/NYM-J)
For power circuits (sockets), we use only three-core copper cable with a cross-section of 3x2.5 mm², and for lighting circuits - 3x1.5 mm². This is a standard that guarantees fire safety and the ability to power all modern high-power household appliances, unlike old aluminum installations. Origin: Eldominvest, Gamkabel.
Polypropylene (PPR) Pipes for Plumbing
We use high-quality PPR pipes and fittings with an operating pressure of PN20 for hot water and PN16 for cold. Unlike old steel pipes, they do not corrode, do not accumulate limescale, have a lifespan of over 50 years, and provide clean drinking water. All connections are made through polyfusion welding, which makes them practically monolithic.
Gypsum Plaster Knauf Rotband
For straightening walls in dry rooms, we prefer Knauf Rotband. This gypsum plaster has excellent adhesion to old concrete panels and brick. It allows application of a layer up to 50 mm thick at once, making it ideal for correcting large irregularities in old apartments. It creates a smooth surface and regulates humidity in the room.
Cement Screed Baumit Solido E225
For building new, level, and strong floors, we use this factory-produced, fibrous flooring screed class CT-C25-F4. It provides a compressive strength of 25 N/mm², making it suitable for all residential loads. It guarantees a perfectly level base without cracks, ready for laying final flooring.
Elastic Waterproofing SikaLastic-152
This is a two-component, cement-polymer waterproofing compound, reinforced with fibers. We apply it in bathrooms, on balconies, and in wet rooms. Extremely elastic, it can bridge cracks up to 0.75 mm, which is crucial for old buildings subject to slight movements. It provides 100% protection against leaks under tiles.
Mineral Wool for Sound Insulation Knauf Insulation
To improve sound insulation between apartments, we use high-density mineral wool slabs (50-70 kg/m³). Installed in wall linings or floating floors, they effectively absorb airborne noise (conversations, TV) and reduce noise discomfort, which is one of the biggest disadvantages of panel buildings.
Types of Properties We Renovate
Our expertise is focused on the specific challenges of old residential buildings.
Frequently asked questions
Related services in Interior renovation
Transform Your Old Apartment into Your Dream Home
Do not compromise the safety and comfort of your family due to outdated installations and crooked walls. Investing in a complete major renovation is an investment in peace of mind and higher property value for decades to come. Contact Infra Remonti EOOD at +359 88 654 0238 for a free inspection and a detailed, fixed offer for a complete renovation of your old apartment in Varna, Burgas, Plovdiv, or Sofia. We guarantee quality with a 15-year written warranty.
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088 654 0238Ready to get started?
Do not compromise the safety and comfort of your family due to outdated installations and crooked walls. Investing in a complete major renovation is an investment in peace of mind and higher property value for decades to come. Contact Infra Remonti EOOD at +359 88 654 0238 for a free inspection and a detailed, fixed offer for a complete renovation of your old apartment in Varna, Burgas, Plovdiv, or Sofia. We guarantee quality with a 15-year written warranty.
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