- Jln Cempaka Wangi No 22, Jakarta - Indonesia
- +6221 2002 2012
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From concept to construction, we deliver precision-driven solutions. Trusted by clients in the UK, USA, and Australia for architectural drafting, estimation, and modern design services.
At Sum Estimators, we don’t just offer architectural services, we help shape spaces with purpose. From detailed architectural designs to accurate estimates and drafting, our work fuels smarter builds across the UK, USA, and Australia.
We listen first. Every successful project starts with clear goals, shared ideas, and trust. That’s how we build lasting structures and relationships.
We aim to lead globally among architectural design services, with smart solutions and timeless, modern architecture.
From custom home builders to commercial construction, we deliver excellence through collaboration, precision, and purpose.
We turn great architectural plans into great buildings on time, on budget, and built to last.
We combine innovative design with practical construction strategies tailored to your goals.
Get expert insights and personalized guidance before your project even begins.
Questions don’t wait—and neither do we. Reach us anytime you need help.
We create spaces that reflect vision, function, and soul – built on clarity, collaboration, and lasting architectural quality.
We help bring your vision to life with practical, beautiful, and lasting architecture.
We plan every step carefully—aligning timelines, design goals, and project milestones to ensure a smooth and efficient build.
We turn visions into structured plans with detailed layouts, mood boards, and architectural sketches tailored to your space needs.
We manage each build phase—from excavation to final polish—with top-tier materials, expert craftsmanship, and constant quality checks throughout.
We enhance existing spaces with modern updates while preserving original charm, function, and architectural integrity from start to finish.
We believe great architecture is built on trust. Here’s what our clients say about working with Sum Estimators.
Working with Sum Estimators was seamless. Their team understood our needs and delivered ahead of schedule.
Specializing in residential construction companies and custom home builders you can trust for life.
We’ve compiled answers to the most common queries our clients ask when exploring architecture, construction, or custom home projects.
We offer full-service design and build services, including custom home building, residential architecture, interior fit-outs, and renovations.
Yes! Our experienced team specializes in architectural design services and building design and drafting services tailored to your needs.
We proudly provide services in the UK, USA, and Australia, with a portfolio of successful projects in both urban and residential spaces.
Absolutely. We offer free consultations to help you understand your options and plan a timeline that works for you.
Unlike typical construction companies, we combine modern architecture, smart planning, and hands-on communication to deliver reliable, customized outcomes.
Depending on scope and design, most custom homes builders complete projects in 6–12 months. Timelines are clearly defined in your initial planning phase.
Yes. Whether it's a full-scale renovation or structural upgrades, our renovation and remodeling services are thoughtful, safe, and budget-conscious.
No problem. Our team can work with your existing architectural plans or help refine them before construction begins.
Yes, we work across residential construction companies and commercial construction sectors delivering quality builds, no matter the scale.
Absolutely. Our interior architecture and interior fit-out services focus on functional, stylish, and efficient spaces designed for modern living.
Yes, we provide landscape architecture services to ensure your outdoor spaces match the quality of your building’s design.
From initial concept to final build, we guide you through planning, architectural drafting services, and construction consulting with full transparency.
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