Business Details
Trusted Window and Door Installation Services in Concord, CA
Lema Windows & Doors has been a trusted provider of premium window and door installation services for over two decades. Our commitment to excellence is reflected in our licensed, bonded, and insured operations, ensuring every project meets the highest standards of craftsmanship. We specialize in energy-efficient solutions tailored to residential properties, including apartment buildings, homes, and condominiums. Our process begins with a free consultation, followed by precise measurements and customized product selection from top brands like Milgard. With a focus on customer satisfaction, we guarantee professional installations, post-service support, and a stress-free experience.Our teams expertise in handling complex installations, combined with a dedication to using advanced materials, ensures durability, security, and aesthetic appeal. We pride ourselves on transparency, offering no-sales-pressure consultations and competitive pricing derived from word-of-mouth referrals rather than advertising. Backed by warranties and a clean contractors license, we serve the SF Bay Area with integrity and reliability.
Services
Window Installation
Door Installation
Interior Door Replacement
Free Design Consultation
Energy-Efficient Windows
Highlights and features
- We offer 20+ years of experience in window and door installations.
- Our team is licensed, bonded, and insured for your protection.
- We provide energy-efficient solutions to reduce heating and cooling costs.
- Free in-home estimates with no sales pressure guaranteed.
- We guarantee 100% customer satisfaction with post-installation support.
Associations and certifications
- National Fenestration Rating Council (NFRC)
- Energy Star
- Milgard Certified Dealer
Services
Window Installation
Our window installation service provides durable, energy-efficient solutions tailored to residential properties. We use advanced materials like vinyl, fiberglass, and wood, ensuring improved insulation, noise reduction, and security. The process includes a free consultation, precise measurements, and same-day installation, backed by product warranties. This service enhances home aesthetics while lowering energy bills through high-performance designs.
Door Installation
We specialize in installing entry and patio doors that combine security, durability, and style. Our options include customizable materials and energy-efficient features to match your homes architecture. The service includes a free estimate, professional fitting, and cleanup, ensuring a seamless upgrade that boosts curb appeal and functionality without compromising on quality.
Interior Door Replacement
Upgrade your homes interior with our cost-effective door replacement solutions. We offer a range of styles and materials to enhance room aesthetics and functionality. The service includes expert installation, ensuring smooth operation and a polished finish that revitalizes your living spaces while maintaining budget-friendly pricing.
Free Design Consultation
Our free design consultation helps you select windows and doors that align with your homes architectural style and energy efficiency goals. Owner-led consultations ensure personalized recommendations, transparent pricing, and tailored solutions to maximize value and satisfaction without sales pressure.
Energy-Efficient Windows
Energy-efficient windows reduce heating and cooling costs through low-e coatings, gas fills, and multi-pane designs. These solutions improve insulation, minimize drafts, and block UV rays, enhancing comfort while lowering utility bills. Ideal for eco-conscious homeowners seeking long-term savings and sustainability.
People
Leszek Masluch
Founder / Owner
Leszek Masluch founded Lema Windows & Doors with a commitment to quality and customer satisfaction. With over 20 years in the industry, he ensures every project meets rigorous standards through hands-on oversight and transparent consultations.
Questions
What services does Lema Windows and Doors offer?
We specialize in window and door installation, interior door replacement, energy-efficient solutions, and free design consultations for residential properties.
Are your installers licensed and insured?
Yes, we are fully licensed, bonded, and insured, ensuring your project is handled professionally and safely.
Do you provide free estimates?
Yes, we offer free in-home estimates with no sales pressure, conducted directly by the owner.
What areas do you serve?
We serve the SF Bay Area, including North Bay, East Bay, and Concord, CA.
What certifications do you hold?
We are certified by Energy Star and the National Fenestration Rating Council (NFRC) and are a Milgard certified dealer.
How long does installation take?
Most installations are completed in one day, depending on project complexity and the number of units.
