{"id":6716,"date":"2026-09-09T16:13:24","date_gmt":"2026-09-09T20:13:24","guid":{"rendered":"https:\/\/grpcartier.com\/blogue\/major-renovation-steps-cost-control\/"},"modified":"2026-09-09T16:13:33","modified_gmt":"2026-09-09T20:13:33","slug":"major-renovation-steps-cost-control","status":"publish","type":"post","link":"https:\/\/grpcartier.com\/en\/blog\/major-renovation-steps-cost-control\/","title":{"rendered":"6 Steps to Keep Major Renovation Costs Under Control"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6716\" class=\"elementor elementor-6716 elementor-6715 elementor-bc-flex-widget\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c5d82a1 e-con-full e-flex e-con e-parent\" data-id=\"c5d82a1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e91b4f6 elementor-widget elementor-widget-html\" data-id=\"e91b4f6\" 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Many homeowners confuse it with extra room in the contractor's budget. In reality, it is the client's reserve and is used only when a documented issue arises, such as a damaged load-bearing wall or outdated wiring.\"\n     }\n    }\n   ]\n  }\n ]\n}\n<\/script>\n<article class=\"gc-article\">\n  <nav class=\"gc-breadcrumb\" aria-label=\"Breadcrumb\"><a href=\"https:\/\/grpcartier.com\/en\/\">Home<\/a> \u203a <a href=\"https:\/\/grpcartier.com\/en\/blog\/\">Blog<\/a> \u203a 6 Steps in a Major Renovation<\/nav>\n  <span class=\"gc-kicker\">Major Renovation<\/span>\n  <h1>What Are the 6 Steps to a Major Renovation That Stays on Budget?<\/h1>\n  <div class=\"gc-byline\"><img decoding=\"async\" src=\"https:\/\/grpcartier.com\/wp-content\/uploads\/2025\/10\/grpcartier-francois-avatar.jpg\" alt=\"Fran\u00e7ois Guida\" class=\"gc-byline-photo\"><div class=\"gc-byline-info\"><p class=\"gc-byline-name\">Article by <a href=\"https:\/\/grpcartier.com\/en\/blog\/author\/francois-guida\/\">Fran\u00e7ois Guida<\/a><\/p><p class=\"gc-byline-role\">President, CEO and Partner, Groupe Cartier<\/p><p class=\"gc-byline-date\">Published September 9, 2026 \u00b7 9 min read<\/p><\/div><\/div>\n\n  <p class=\"gc-lead\">A well-managed major renovation follows six defined steps: discovery call, in-home visit, design, clear agreement, managed construction and delivery. Together, they lock in the budget before the first hammer swings. At Groupe Cartier, this process limits cost overruns to the planned 15% contingency on a structural renovation that typically takes 12 to 16 weeks.<\/p>\n\n  <img decoding=\"async\" class=\"gc-body-img gc-body-img--materials\" src=\"https:\/\/grpcartier.com\/wp-content\/uploads\/2025\/10\/DSC03978-scaled.jpg\" alt=\"Design session and material selection at the Groupe Cartier showroom\" loading=\"eager\" fetchpriority=\"high\">\n\n  <p>Most renovation cost overruns are not caused by unforeseeable surprises. They come from decisions made during construction, such as choosing a material too late, changing a plan after work begins or relying on an estimate that lacks detail. The six-step process used by Groupe Cartier, a general contractor and design firm founded in Montreal in 1998, is specifically structured to eliminate these sources of budget drift.<\/p>\n\n  <h2>Step 1: The Free Discovery Call<\/h2>\n  <p>Every project begins with a free, no-obligation discovery call. This initial conversation defines the nature of the project, whether it is a major renovation, kitchen, bathroom or addition, as well as the approximate budget and desired timeline. It also confirms that the project matches the team's expertise before either party invests more time.<\/p>\n  <p>This is also when homeowners in Greater Montreal's most demanding neighbourhoods, including Outremont, Westmount, Town of Mount Royal, Boucherville and Saint-Bruno-de-Montarville, can explain the constraints of their property. These may include preserving an older building, complying with borough regulations or protecting an already landscaped lot.<\/p>\n\n  <h2>Step 2: The In-Home Visit<\/h2>\n  <p>A project manager and, depending on the scope, an APDIQ-member interior designer visit the property to assess its actual condition. They examine the structure, electrical system, plumbing, insulation and layout potential. This visit identifies issues that could affect the budget early, such as the condition of a load-bearing wall or limited basement access.<\/p>\n  <p>For Westmount residences, where average household income was approximately $278,000 in the 2021 Census according to Statistics Canada, and for cottages in Boucherville or Saint-Bruno-de-Montarville built between 1970 and 1990, this on-site assessment is decisive. Two homes with the same floor area can require very different budgets depending on their structural condition.<\/p>\n\n  <h3>What the Visit Helps Lock In<\/h3>\n  <ul>\n    <li>The exact scope of the required structural work<\/li>\n    <li>Parking, site access and occupant cohabitation constraints<\/li>\n    <li>Municipal permit requirements for the city or borough<\/li>\n  <\/ul>\n\n  <h2>Step 3: Design, Plans and Material Selection<\/h2>\n  <p>This is the most important step for controlling costs. The <a href=\"https:\/\/grpcartier.com\/en\/interior-design\/\">interior design<\/a> team prepares the plans and, where relevant, 3D renderings. It also guides the client through all material selections, including Miralis cabinetry, Cosentino Dekton and quartz countertops, and Richelieu hardware, before construction begins.<\/p>\n  <p>This discipline fundamentally changes the project's dynamics. Instead of selecting a material during construction, under pressure and often at a premium, every choice is made in advance in the calm of the showroom at 9090 avenue du Parc. The material library and inspirational kitchens make it possible to compare options in person.<\/p>\n\n  <div class=\"gc-table-wrap\">\n    <table>\n      <thead><tr><th>Project Type<\/th><th>Design-to-Installation Timeline<\/th><th>Price Range<\/th><\/tr><\/thead>\n      <tbody>\n        <tr><td>Complete custom kitchen<\/td><td>12 to 16 weeks, from design to installation<\/td><td>$30,000 to $60,000+<\/td><\/tr>\n        <tr><td>Kitchen construction only<\/td><td>6 to 10 weeks<\/td><td>Included in the kitchen budget<\/td><\/tr>\n        <tr><td>Cabinet replacement only<\/td><td>3 to 6 weeks<\/td><td>Varies by floor area<\/td><\/tr>\n        <tr><td>Major renovation, including structure<\/td><td>12 to 16 weeks<\/td><td>$150 to $260\/sq. ft.<\/td><\/tr>\n        <tr><td>High-end bathroom<\/td><td>Integrated into the major renovation timeline<\/td><td>$35,000 to $55,000+<\/td><\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n\n  <h2>Step 4: A Clear Agreement Before the First Hammer Swings<\/h2>\n  <p>Once the plans and selections are finalized, Groupe Cartier presents a detailed agreement. It includes a firm price for each scope of work, a precise timeline and a clearly identified contingency of approximately 15% for unforeseen conditions. There are no hidden surprises in a vague lump sum. Each item is priced so the client can see exactly where the budget is going.<\/p>\n  <p>This contractual transparency is one of the main advantages of a <a href=\"https:\/\/grpcartier.com\/en\/turnkey-service\/\">turnkey service<\/a>. One point of contact remains responsible for quality, timing and budget, from the first plan through to the handover.<\/p>\n\n  <div class=\"gc-encart\">\n    <strong>What causes budgets to drift elsewhere.<\/strong> The most common renovation cost overruns come from selecting materials during construction, coordinating multiple trades without centralized oversight and using verbal agreements that leave the scope unclear. Groupe Cartier's discipline addresses these risks at signing: plans and materials are finalized before construction, the company relies on its in-house carpenters and cabinetmakers instead of unknown subcontractors, and the 15% contingency is explicit.\n  <\/div>\n\n  <h2>Step 5: A Construction Site Managed by One Point of Contact<\/h2>\n  <p>During construction, a site supervisor and project manager coordinate all trades, each certified by the Commission de la construction du Qu\u00e9bec (CCQ). The client never has to manage several subcontractors or resolve scheduling conflicts between trades. One point of contact tracks progress, communicates timelines and promptly flags any deviation from the original plan.<\/p>\n  <p>For a complete structural renovation involving wall removal, insulation, electrical work, plumbing and finishes, the typical 12-to-16-week timeline is communicated in Step 4 and closely monitored throughout construction.<\/p>\n\n  <img decoding=\"async\" class=\"gc-body-img\" src=\"https:\/\/grpcartier.com\/wp-content\/uploads\/2026\/02\/GroupeCartier-08-scaled.jpg\" alt=\"Groupe Cartier team in front of a major renovation site in Montreal\" loading=\"lazy\">\n\n  <h2>Step 6: Delivery and Follow-Up<\/h2>\n  <p>The final step includes a joint inspection, delivery of the applicable warranties and documentation for installed materials, followed by a check-in to make sure everything works as intended once the occupants have moved back in. This is also when many Groupe Cartier clients see the value of the completed work. A quality kitchen generally recovers 75% to 100% of its cost at resale, one of the strongest returns on investment in residential renovation.<\/p>\n  <p>Several projects completed through this process are featured in Groupe Cartier's <a href=\"https:\/\/grpcartier.com\/en\/our-projects\/\">project portfolio<\/a>. They include Delorimier, a Miralis Contest winner in the Quebec Kitchen category, and Sgambato, a renovation involving a kitchen and two bathrooms.<\/p>\n\n  <h2>Why This Discipline Matters More for Major Renovations<\/h2>\n  <p>The broader the scope of a project, including structure, insulation, electrical work, plumbing and finishes, the greater the risk of cost overruns if each step is not locked in before the next begins. In prestigious properties in Outremont, Town of Mount Royal and established neighbourhoods in Boucherville and Saint-Bruno-de-Montarville, major renovation budgets often range from $210,000 to $750,000+ for a complete 1,200-to-2,500-square-foot home. This discipline becomes as important to the project's success as the choice of materials or design. Before committing, also review <a href=\"https:\/\/grpcartier.com\/en\/blog\/licensed-contractor-rbq-apchq-ccq-montreal\/\">what RBQ, APCHQ and CCQ certifications guarantee<\/a> when choosing a contractor.<\/p>\n  <p>According to the general guidance published by the <a href=\"https:\/\/www.apchq.com\/\" target=\"_blank\" rel=\"noopener\">APCHQ<\/a>, of which Groupe Cartier has been a member since May 2008, a detailed contract with a timeline and a price for each scope of work remains the best protection against disputes and cost overruns in residential construction.<\/p>\n\n  <div class=\"gc-badges\">\n    <span>RBQ Licence 8264-6134-49<\/span><span>APCHQ member since 2008<\/span><span>CCQ-certified workforce<\/span><span>Miralis Partner<\/span>\n  <\/div>\n\n  <h2>Frequently Asked Questions<\/h2>\n  <div class=\"gc-faq\">\n    <details><summary>How long does a major renovation take in Montreal?<\/summary><div class=\"gc-faq-a\"><p>A major renovation involving the structure, insulation, electrical work, plumbing and finishes generally takes 12 to 16 weeks of construction with Groupe Cartier, once the plans and material selections are finalized. A kitchen-only renovation takes 6 to 10 weeks, while cabinet replacement alone takes 3 to 6 weeks.<\/p><\/div><\/details><details><summary>What is the first step before renovating a house?<\/summary><div class=\"gc-faq-a\"><p>The first step is a free, no-obligation discovery call. It helps define your needs, approximate budget and desired timeline before scheduling an in-home visit. This step avoids committing to a detailed estimate before there is a clear vision for the project.<\/p><\/div><\/details><details><summary>How can you avoid renovation cost overruns?<\/summary><div class=\"gc-faq-a\"><p>The most effective approach is to finalize all plans and material selections before construction begins, sign a detailed agreement with a firm price for each scope of work, and set aside a contingency of approximately 15% for unforeseen conditions. A single point of contact responsible for the project from start to finish also limits costly communication errors.<\/p><\/div><\/details><details><summary>What is a 15% renovation contingency?<\/summary><div class=\"gc-faq-a\"><p>It is a budget reserve for unforeseen conditions, separate from the firm price negotiated in Step 4. Many homeowners confuse it with extra room in the contractor's budget. In reality, it is the client's reserve and is used only when a documented issue arises, such as a damaged load-bearing wall or outdated wiring.<\/p><\/div><\/details>\n  <\/div>\n\n  <div class=\"gc-cta\">\n    <h2>Tell Us About Your Project<\/h2>\n    <p>Start with a free, no-obligation discovery call to build a clear budget and realistic timeline, with turnkey support from design through delivery.<\/p>\n    <a class=\"gc-btn\" href=\"https:\/\/grpcartier.com\/en\/contact-us\/\">Schedule My Discovery Call<\/a>\n    <span class=\"gc-tel\">Or call us: <a href=\"tel:+15146296029\">514-629-6029<\/a><\/span>\n  <\/div>\n<\/article>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Explore the 6-step Groupe Cartier process for a major renovation in Montreal and see how each stage protects your budget and project timeline.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[75],"tags":[],"class_list":["post-6716","post","type-post","status-publish","format-standard","hentry","category-major-renovation"],"acf":[],"_links":{"self":[{"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/posts\/6716","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/comments?post=6716"}],"version-history":[{"count":1,"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/posts\/6716\/revisions"}],"predecessor-version":[{"id":6717,"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/posts\/6716\/revisions\/6717"}],"wp:attachment":[{"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/media?parent=6716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/categories?post=6716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/grpcartier.com\/en\/wp-json\/wp\/v2\/tags?post=6716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}